From be4ccd9f2e666bf677508c99bba9a00ae4e5f88c Mon Sep 17 00:00:00 2001
From: Eliza Weisman <eliza@buoyant.io>
Date: Wed, 9 Aug 2023 13:50:58 -0700
Subject: [PATCH] chore:  move to One Big Cargo Workspace (#219)

This commit changes the Cargo workspace setup to put all crates in One
Big Workspace, rather than having separate workspaces for some targets.
We now use the `per-package-target` unstable cargo feature to build
different crates for different targets. This means that `cargo` commands
in the root workspace now work without requiring the user to `cd` into a
particular directory to build a platform target --- for example, I can
now run:

```shell
# in the repo root directory
$ cargo build -p mnemos-d1 --bin mq-pro
```

and build a MnemOS binary for the MQ Pro, without having to `cd` into
the MQ Pro directory.

This is also necessary in order to make the `x86_64` build process added
in PR #216 work, since it relies on cargo artifact dependencies, which
appear not to work across workspaces.

One issue is that `cargo build --workspace` (and `check --workspace`,
etc) still does not work correctly, due to some [weird][1] [issues][2]
with feature unification which I don't entirely understand. However, as
a workaround, I've changed the workspace Cargo.toml to add a
[`default-members` field][3], so that running `cargo build` or `cargo
check`
_without_ `--workspace` will build the subset of crates in the
`default-members` key. This way, `cargo {build, check, etc}` in the repo
root will do something reasonable by default, and the actual platform
targets can be built/checked with `cargo $WHATEVER --package $CRATE`.
IMO, this is still substantially nicer than having a bunch of separate
workspaces.

[1]: https://github.com/ia0/data-encoding/issues/47
[2]: https://github.com/bincode-org/bincode/issues/556
[3]: https://doc.rust-lang.org/cargo/reference/workspaces.html#the-default-members-field
---
 .cargo/config.toml                            |  11 +-
 .github/workflows/ci.yml                      |  12 +-
 .vscode/settings.json                         |  20 +
 Cargo.lock                                    | 909 ++++++++++++++++--
 Cargo.toml                                    |  90 +-
 default.nix                                   |   1 +
 justfile                                      |  97 +-
 platforms/allwinner-d1/README.md              |  41 +-
 .../allwinner-d1/boards/.cargo/config.toml    |   2 -
 platforms/allwinner-d1/boards/Cargo.lock      |   1 -
 platforms/allwinner-d1/boards/Cargo.toml      |  42 +-
 platforms/allwinner-d1/core/Cargo.toml        |   2 +
 platforms/beepy/Cargo.toml                    |   2 +
 platforms/esp32c3-buddy/.cargo/config.toml    |  21 -
 platforms/esp32c3-buddy/Cargo.toml            |  48 +-
 platforms/esp32c3-buddy/README.md             |  53 +-
 platforms/melpomene/Cargo.toml                |   2 +
 platforms/pomelo/Cargo.toml                   |  14 +-
 platforms/pomelo/src/main.rs                  |   4 +-
 rust-toolchain.toml                           |   9 +-
 shell.nix                                     |  10 -
 source/abi/Cargo.toml                         |   2 +
 source/alloc/Cargo.toml                       |   2 +
 source/config/Cargo.toml                      |   2 +
 source/forth3/Cargo.toml                      |   2 +
 source/forth3/src/lib.rs                      |   6 +-
 source/kernel/Cargo.toml                      |   2 +
 source/kernel/src/services/emb_display.rs     |   2 +-
 source/mstd/Cargo.toml                        |   2 +
 source/sermux-proto/Cargo.toml                |   2 +
 source/spitebuf/Cargo.toml                    |   2 +
 source/trace-proto/Cargo.toml                 |   2 +
 tools/crowtty/Cargo.toml                      |   4 +-
 tools/crowtty/src/trace.rs                    |  14 +-
 tools/dumbloader/Cargo.toml                   |   2 +
 tools/f3repl/Cargo.toml                       |   2 +
 36 files changed, 1153 insertions(+), 286 deletions(-)
 create mode 100644 .vscode/settings.json
 delete mode 100644 platforms/allwinner-d1/boards/.cargo/config.toml
 delete mode 100644 platforms/esp32c3-buddy/.cargo/config.toml

diff --git a/.cargo/config.toml b/.cargo/config.toml
index aa8a8d5c..b96f4c50 100644
--- a/.cargo/config.toml
+++ b/.cargo/config.toml
@@ -1,3 +1,12 @@
+[alias]
+crowtty = "run --bin crowtty --release --"
+melpomene = "run --bin melpomene --release --"
+melpo = "melpomene"
+forth3 = "run --bin f3repl --release --"
+
 [build]
 # Currently needed for `tokio-console` support.
-rustflags = ["--cfg", "tokio_unstable"]
\ No newline at end of file
+rustflags = ["--cfg", "tokio_unstable"]
+
+[target.riscv32imac-unknown-none-elf]
+runner = "espflash flash --monitor"
\ No newline at end of file
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5e8bd155..663eb8ae 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -136,14 +136,6 @@ jobs:
       run: rustup show
     - uses: actions/checkout@v2
     - uses: olix0r/cargo-action-fmt@ee1ef42932e44794821dab57ef1bf7a73df8b21f
+    - uses: extractions/setup-just@v1
     - name: run rustdoc
-      run: |
-        cargo doc \
-          --message-format=json \
-          --no-deps \
-          --all-features \
-          --workspace \
-          --document-private-items |
-          cargo-action-fmt
-      env:
-        RUSTDOCFLAGS: "--cfg docsrs -Dwarnings"
+      run: just docs --message-format=json --document-private-items
diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 00000000..720cbb24
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,20 @@
+{
+    "rust-analyzer.check.invocationLocation": "workspace",
+    "rust-analyzer.cargo.buildScripts.invocationLocation": "workspace",
+    "rust-analyzer.cargo.buildScripts.overrideCommand": [
+        "cargo",
+        "check",
+        "--quiet",
+        "--message-format=json",
+        "--all-targets"
+    ],
+    "rust-analyzer.check.overrideCommand": [
+        "cargo",
+        "clippy",
+        "--quiet",
+        "--message-format=json",
+        "--all-targets"
+    ],
+    "rust-analyzer.workspace.symbol.search.scope": "workspace_and_dependencies",
+    "rust-analyzer.typing.continueCommentsOnNewline": false
+}
\ No newline at end of file
diff --git a/Cargo.lock b/Cargo.lock
index c43df92d..58fd10bf 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -123,6 +123,132 @@ version = "1.0.71"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9c7d0618f0e0b7e8ff11427422b64564d5fb0be1940354bfe2e0529b18a9d9b8"
 
+[[package]]
+name = "anymap2"
+version = "0.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d301b3b94cb4b2f23d7917810addbbaff90738e0ca2be692bd027e70d7e0330c"
+
+[[package]]
+name = "async-channel"
+version = "1.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "81953c529336010edd6d8e358f886d9581267795c61b19475b71314bffa46d35"
+dependencies = [
+ "concurrent-queue",
+ "event-listener",
+ "futures-core",
+]
+
+[[package]]
+name = "async-executor"
+version = "1.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6fa3dc5f2a8564f07759c008b9109dc0d39de92a88d5588b8a5036d286383afb"
+dependencies = [
+ "async-lock",
+ "async-task",
+ "concurrent-queue",
+ "fastrand",
+ "futures-lite",
+ "slab",
+]
+
+[[package]]
+name = "async-global-executor"
+version = "2.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f1b6f5d7df27bd294849f8eec66ecfc63d11814df7a4f5d74168a2394467b776"
+dependencies = [
+ "async-channel",
+ "async-executor",
+ "async-io",
+ "async-lock",
+ "blocking",
+ "futures-lite",
+ "once_cell",
+]
+
+[[package]]
+name = "async-io"
+version = "1.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0fc5b45d93ef0529756f812ca52e44c221b35341892d3dcc34132ac02f3dd2af"
+dependencies = [
+ "async-lock",
+ "autocfg 1.1.0",
+ "cfg-if 1.0.0",
+ "concurrent-queue",
+ "futures-lite",
+ "log",
+ "parking",
+ "polling",
+ "rustix",
+ "slab",
+ "socket2",
+ "waker-fn",
+]
+
+[[package]]
+name = "async-lock"
+version = "2.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fa24f727524730b077666307f2734b4a1a1c57acb79193127dcc8914d5242dd7"
+dependencies = [
+ "event-listener",
+]
+
+[[package]]
+name = "async-process"
+version = "1.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7a9d28b1d97e08915212e2e45310d47854eafa69600756fc735fb788f75199c9"
+dependencies = [
+ "async-io",
+ "async-lock",
+ "autocfg 1.1.0",
+ "blocking",
+ "cfg-if 1.0.0",
+ "event-listener",
+ "futures-lite",
+ "rustix",
+ "signal-hook",
+ "windows-sys",
+]
+
+[[package]]
+name = "async-std"
+version = "1.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "62565bb4402e926b29953c785397c6dc0391b7b446e45008b0049eb43cec6f5d"
+dependencies = [
+ "async-channel",
+ "async-global-executor",
+ "async-io",
+ "async-lock",
+ "async-process",
+ "crossbeam-utils",
+ "futures-channel",
+ "futures-core",
+ "futures-io",
+ "futures-lite",
+ "gloo-timers",
+ "kv-log-macro",
+ "log",
+ "memchr",
+ "once_cell",
+ "pin-project-lite",
+ "pin-utils",
+ "slab",
+ "wasm-bindgen-futures",
+]
+
+[[package]]
+name = "async-task"
+version = "4.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ecc7ab41815b3c653ccd2978ec3255c81349336702dfdf62ee6f7069b12a3aae"
+
 [[package]]
 name = "async-trait"
 version = "0.1.72"
@@ -143,6 +269,12 @@ dependencies = [
  "critical-section",
 ]
 
+[[package]]
+name = "atomic-waker"
+version = "1.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1181e1e0d1fce796a03db1ae795d67167da795f9cf4a39c37589e85ef57f26d3"
+
 [[package]]
 name = "atty"
 version = "0.2.14"
@@ -177,7 +309,7 @@ checksum = "a6a1de45611fdb535bfde7b7de4fd54f4fd2b17b1737c0a59b69bf9b92074b8c"
 dependencies = [
  "async-trait",
  "axum-core",
- "bitflags",
+ "bitflags 1.3.2",
  "bytes",
  "futures-util",
  "http",
@@ -262,6 +394,15 @@ version = "0.21.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "604178f6c5c21f02dc555784810edfb88d34ac2c73b2eae109655649ee73ce3d"
 
+[[package]]
+name = "basic-toml"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7bfc506e7a2370ec239e1d072507b2a80c833083699d3c6fa176fbb4de8448c6"
+dependencies = [
+ "serde",
+]
+
 [[package]]
 name = "bbq10kbd"
 version = "0.1.0"
@@ -271,6 +412,15 @@ dependencies = [
  "embedded-hal-async",
 ]
 
+[[package]]
+name = "bincode"
+version = "1.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b1f45e9417d87227c7a56d22e471c6206462cba514c7590c09aff4cf6d1ddcad"
+dependencies = [
+ "serde",
+]
+
 [[package]]
 name = "bit-set"
 version = "0.5.3"
@@ -298,6 +448,27 @@ version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
+[[package]]
+name = "bitflags"
+version = "2.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "630be753d4e58660abd17930c71b647fe46c27ea6b63cc59e1e3851406972e42"
+
+[[package]]
+name = "blocking"
+version = "1.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "77231a1c8f801696fc0123ec6150ce92cffb8e164a02afb9c8ddee0e9b65ad65"
+dependencies = [
+ "async-channel",
+ "async-lock",
+ "async-task",
+ "atomic-waker",
+ "fastrand",
+ "futures-lite",
+ "log",
+]
+
 [[package]]
 name = "bumpalo"
 version = "3.13.0"
@@ -362,7 +533,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4ea181bf566f71cb9a5d17a59e1871af638180a18fb0035c92ae62b705207123"
 dependencies = [
  "atty",
- "bitflags",
+ "bitflags 1.3.2",
  "clap_derive 3.2.25",
  "clap_lex 0.2.4",
  "indexmap 1.9.3",
@@ -391,7 +562,7 @@ checksum = "2e53afce1efce6ed1f633cf0e57612fe51db54a1ee4fd8f8503d078fe02d69ae"
 dependencies = [
  "anstream",
  "anstyle",
- "bitflags",
+ "bitflags 1.3.2",
  "clap_lex 0.5.0",
  "strsim",
 ]
@@ -442,7 +613,7 @@ version = "0.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ddfc5b9aa5d4507acaf872de71051dfd0e309860e88966e1051e462a077aac4f"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
 ]
 
 [[package]]
@@ -463,6 +634,15 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "acbf1af155f9b9ef647e42cdc158db4b64a1b61f743629225fde6f3e0be2a7c7"
 
+[[package]]
+name = "concurrent-queue"
+version = "2.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "62ec6771ecfa0762d24683ee5a32ad78487a3d3afdc0fb8cae19d2c5deb50b7c"
+dependencies = [
+ "crossbeam-utils",
+]
+
 [[package]]
 name = "console-api"
 version = "0.5.0"
@@ -631,6 +811,41 @@ dependencies = [
  "vcell",
 ]
 
+[[package]]
+name = "darling"
+version = "0.20.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0209d94da627ab5605dcccf08bb18afa5009cfbef48d8a8b7d7bdbc79be25c5e"
+dependencies = [
+ "darling_core",
+ "darling_macro",
+]
+
+[[package]]
+name = "darling_core"
+version = "0.20.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "177e3443818124b357d8e76f53be906d60937f0d3a90773a664fa63fa253e621"
+dependencies = [
+ "fnv",
+ "ident_case",
+ "proc-macro2",
+ "quote",
+ "strsim",
+ "syn 2.0.27",
+]
+
+[[package]]
+name = "darling_macro"
+version = "0.20.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "836a9bbc7ad63342d6d6e7b815ccab164bc77a2d95d84bc3117a8c0d5c98e2d5"
+dependencies = [
+ "darling_core",
+ "quote",
+ "syn 2.0.27",
+]
+
 [[package]]
 name = "deflate"
 version = "0.8.6"
@@ -647,7 +862,7 @@ version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a8a2d011b2fee29fb7d659b83c43fce9a2cb4df453e16d441a51448e448f3f98"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "defmt-macros",
 ]
 
@@ -707,6 +922,15 @@ version = "1.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a26ae43d7bcc3b814de94796a5e736d4029efb0ee900c12e2d54c993ad1a1e07"
 
+[[package]]
+name = "embedded-dma"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "994f7e5b5cb23521c22304927195f236813053eb9c065dd2226a32ba64695446"
+dependencies = [
+ "stable_deref_trait",
+]
+
 [[package]]
 name = "embedded-graphics"
 version = "0.7.1"
@@ -794,6 +1018,110 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "esp-alloc"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "83792eb7261a375bb838679fea2b45654b8f4a48da6bef10a96da5054aa81c7d"
+dependencies = [
+ "critical-section",
+ "linked_list_allocator",
+]
+
+[[package]]
+name = "esp-backtrace"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b151ef7db21143b1a3b7a378c16d97ae13d0a5e3cb9682ed1f11bba821cce42d"
+dependencies = [
+ "esp-println",
+]
+
+[[package]]
+name = "esp-hal-common"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "05d4498ddbbbf9a21e64f9269d2b4dd4059c34863ff54c702fb99e435f967767"
+dependencies = [
+ "basic-toml",
+ "bitflags 2.3.3",
+ "cfg-if 1.0.0",
+ "critical-section",
+ "embedded-dma",
+ "embedded-hal 0.2.7",
+ "esp-hal-procmacros",
+ "esp-riscv-rt",
+ "esp32c3",
+ "fugit",
+ "log",
+ "nb 1.1.0",
+ "paste",
+ "riscv-atomic-emulation-trap",
+ "serde",
+ "strum",
+ "void",
+]
+
+[[package]]
+name = "esp-hal-procmacros"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "042d5a1ef0e01d6de045972779e4aced3a10e6170169a5cb2de7bef31802e28a"
+dependencies = [
+ "darling",
+ "proc-macro-crate",
+ "proc-macro-error",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.27",
+]
+
+[[package]]
+name = "esp-println"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "af6a511d37dba5fb8f01bf5485bc619a1a1959e1aaf666a7597df8fe615a0816"
+dependencies = [
+ "critical-section",
+]
+
+[[package]]
+name = "esp-riscv-rt"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e523ed9a26c604d4469dff4777484b14f977e864ba041f634ade1d7f47ef4151"
+dependencies = [
+ "riscv",
+ "riscv-rt-macros",
+]
+
+[[package]]
+name = "esp32c3"
+version = "0.15.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ae547e9a4524b34c2b302fd71c304f8b221bcd4eed4ef17c8bf53408baacad5f"
+dependencies = [
+ "critical-section",
+ "vcell",
+]
+
+[[package]]
+name = "esp32c3-hal"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e8efd438e920ef0b16be9a4792a430c3ddfa4e206011df4a6cb5f8e646b7f89d"
+dependencies = [
+ "cfg-if 1.0.0",
+ "embedded-hal 0.2.7",
+ "esp-hal-common",
+]
+
+[[package]]
+name = "event-listener"
+version = "2.5.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0206175f82b8d6bf6652ff7d71a1e27fd2e4efde587fd368662814d6ec1d9ce0"
+
 [[package]]
 name = "f3repl"
 version = "0.1.0"
@@ -875,6 +1203,15 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a06f77d526c1a601b7c4cdd98f54b5eaabffc14d5f2f0296febdc7f357c6d3ba"
 
+[[package]]
+name = "fugit"
+version = "0.3.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "17186ad64927d5ac8f02c1e77ccefa08ccd9eaa314d5a4772278aa204a22f7e7"
+dependencies = [
+ "gcd",
+]
+
 [[package]]
 name = "futures"
 version = "0.3.28"
@@ -923,6 +1260,21 @@ version = "0.3.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4fff74096e71ed47f8e023204cfd0aa1289cd54ae5430a9523be060cdb849964"
 
+[[package]]
+name = "futures-lite"
+version = "1.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
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+ "serde",
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+ "thiserror",
+ "wasm-bindgen",
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- "futures-macro",
- "futures-sink",
- "futures-task",
- "memchr",
- "pin-project-lite",
- "pin-utils",
- "slab",
+ "wasm-bindgen",
+ "web-sys",
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+name = "gloo-storage"
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 dependencies = [
- "cc",
- "libc",
- "log",
- "rustversion",
- "windows",
+ "gloo-utils",
+ "js-sys",
+ "serde",
+ "serde_json",
+ "thiserror",
+ "wasm-bindgen",
+ "web-sys",
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 [[package]]
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- "cfg-if 1.0.0",
- "libc",
- "wasi 0.11.0+wasi-snapshot-preview1",
+ "futures-channel",
+ "futures-core",
+ "js-sys",
+ "wasm-bindgen",
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 [[package]]
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+name = "gloo-utils"
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 dependencies = [
- "color_quant",
- "weezl",
+ "js-sys",
+ "serde",
+ "serde_json",
+ "wasm-bindgen",
+ "web-sys",
 ]
 
 [[package]]
-name = "gimli"
-version = "0.27.3"
+name = "gloo-worker"
+version = "0.2.1"
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-checksum = "b6c80984affa11d98d1b88b66ac8853f143217b399d3c74116778ff8fdb4ed2e"
+checksum = "13471584da78061a28306d1359dd0178d8d6fc1c7c80e5e35d27260346e0516a"
+dependencies = [
+ "anymap2",
+ "bincode",
+ "gloo-console",
+ "gloo-utils",
+ "js-sys",
+ "serde",
+ "wasm-bindgen",
+ "wasm-bindgen-futures",
+ "web-sys",
+]
 
 [[package]]
 name = "h2"
@@ -1207,6 +1734,12 @@ dependencies = [
  "cc",
 ]
 
+[[package]]
+name = "ident_case"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b9e0384b61958566e926dc50660321d12159025e767c18e043daf26b70104c39"
+
 [[package]]
 name = "idna"
 version = "0.4.0"
@@ -1332,6 +1865,15 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "kv-log-macro"
+version = "1.0.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0de8b303297635ad57c9f5059fd9cee7a47f8e8daa09df0fcd07dd39fb22977f"
+dependencies = [
+ "log",
+]
+
 [[package]]
 name = "lazy_static"
 version = "1.4.0"
@@ -1404,9 +1946,12 @@ dependencies = [
 
 [[package]]
 name = "log"
-version = "0.4.19"
+version = "0.4.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b06a4cde4c0f271a446782e3eff8de789548ce57dbc8eca9292c27f4a42004b4"
+checksum = "518ef76f2f87365916b142844c16d8fefd85039bc5699050210a7778ee1cd1de"
+dependencies = [
+ "value-bag",
+]
 
 [[package]]
 name = "loom"
@@ -1719,6 +2264,21 @@ dependencies = [
  "toml",
 ]
 
+[[package]]
+name = "mnemos-d1"
+version = "0.1.0"
+dependencies = [
+ "d1-pac",
+ "embedded-hal 0.2.7",
+ "futures",
+ "mnemos",
+ "mnemos-beepy",
+ "mnemos-d1-core",
+ "riscv",
+ "riscv-rt",
+ "tracing 0.2.0",
+]
+
 [[package]]
 name = "mnemos-d1-core"
 version = "0.1.0"
@@ -1732,6 +2292,22 @@ dependencies = [
  "tracing 0.1.37",
 ]
 
+[[package]]
+name = "mnemos-esp32c3-buddy"
+version = "0.1.0"
+dependencies = [
+ "critical-section",
+ "esp-alloc",
+ "esp-backtrace",
+ "esp-println",
+ "esp32c3-hal",
+ "futures",
+ "mnemos",
+ "portable-atomic",
+ "riscv",
+ "tracing 0.1.37",
+]
+
 [[package]]
 name = "mnemos-std"
 version = "0.1.0"
@@ -1824,7 +2400,7 @@ version = "0.23.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8f3790c00a0150112de0f4cd161e3d7fc4b2d8a5542ffc35f099a2562aecb35c"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "cc",
  "cfg-if 1.0.0",
  "libc",
@@ -1837,7 +2413,7 @@ version = "0.26.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bfdda3d196821d6af13126e40375cdf7da646a96114af134d5f417a9a1dc8e1a"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "cfg-if 1.0.0",
  "libc",
  "static_assertions",
@@ -1947,7 +2523,7 @@ version = "0.10.55"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "345df152bc43501c5eb9e4654ff05f794effb78d4efe3d53abc158baddc0703d"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "cfg-if 1.0.0",
  "foreign-types",
  "libc",
@@ -2006,6 +2582,18 @@ dependencies = [
  "supports-color 1.3.1",
 ]
 
+[[package]]
+name = "parking"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "14f2252c834a40ed9bb5422029649578e63aa341ac401f74e719dd1afda8394e"
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "de3145af08024dea9fa9914f381a17b8fc6034dfb00f3a84013f7ff43f29ed4c"
+
 [[package]]
 name = "percent-encoding"
 version = "2.3.0"
@@ -2056,17 +2644,62 @@ version = "0.16.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3c3287920cb847dee3de33d301c463fba14dda99db24214ddf93f83d3021f4c6"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "crc32fast",
  "deflate",
  "miniz_oxide 0.3.7",
 ]
 
+[[package]]
+name = "polling"
+version = "2.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4b2d323e8ca7996b3e23126511a523f7e62924d93ecd5ae73b333815b0eb3dce"
+dependencies = [
+ "autocfg 1.1.0",
+ "bitflags 1.3.2",
+ "cfg-if 1.0.0",
+ "concurrent-queue",
+ "libc",
+ "log",
+ "pin-project-lite",
+ "windows-sys",
+]
+
+[[package]]
+name = "pomelo"
+version = "0.1.0"
+dependencies = [
+ "async-std",
+ "chrono",
+ "forth3",
+ "futures",
+ "futures-util",
+ "gloo",
+ "gloo-utils",
+ "humantime",
+ "maitake",
+ "mnemos",
+ "mnemos-alloc",
+ "postcard 1.0.6",
+ "serde",
+ "sermux-proto",
+ "tracing 0.1.37",
+ "tracing-subscriber",
+ "tracing-wasm",
+ "uuid 1.3.4",
+ "wasm-bindgen",
+ "wasm-bindgen-futures",
+]
+
 [[package]]
 name = "portable-atomic"
-version = "1.3.3"
+version = "1.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "767eb9f07d4a5ebcb39bbf2d452058a93c011373abf6832e24194a1c3f004794"
+checksum = "f32154ba0af3a075eefa1eda8bb414ee928f62303a54ea85b8d6638ff1a6ee9e"
+dependencies = [
+ "critical-section",
+]
 
 [[package]]
 name = "postcard"
@@ -2115,6 +2748,16 @@ version = "0.2.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5b40af805b3121feab8a3c29f04d8ad262fa8e0561883e7653e024ae4479e6de"
 
+[[package]]
+name = "proc-macro-crate"
+version = "1.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f4c021e1093a56626774e81216a4ce732a735e5bad4868a03f3ed65ca0c3919"
+dependencies = [
+ "once_cell",
+ "toml_edit",
+]
+
 [[package]]
 name = "proc-macro-error"
 version = "1.0.4"
@@ -2164,7 +2807,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4e35c06b98bf36aba164cc17cb25f7e232f5c4aeea73baa14b8a9f0d92dbfa65"
 dependencies = [
  "bit-set",
- "bitflags",
+ "bitflags 1.3.2",
  "byteorder",
  "lazy_static",
  "num-traits",
@@ -2224,6 +2867,12 @@ dependencies = [
  "proc-macro2",
 ]
 
+[[package]]
+name = "r0"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bd7a31eed1591dcbc95d92ad7161908e72f4677f8fabf2a32ca49b4237cbf211"
+
 [[package]]
 name = "rand"
 version = "0.6.5"
@@ -2406,7 +3055,7 @@ version = "0.2.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fb5a58c1855b4b6819d59012155603f0b22ad30cad752600aadfcb695265519a"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
 ]
 
 [[package]]
@@ -2415,7 +3064,7 @@ version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "567664f262709473930a4bf9e51bf2ebf3348f2e748ccc50dea20646858f8f29"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
 ]
 
 [[package]]
@@ -2482,6 +3131,45 @@ dependencies = [
  "embedded-hal 0.2.7",
 ]
 
+[[package]]
+name = "riscv-atomic-emulation-trap"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "da39f4a5642a62e8e16bb438c37e6f90ea388ca0b7960fe875ea39887155d6ba"
+
+[[package]]
+name = "riscv-rt"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "102c52c89defde24dedf9ac077cc69df77b85aa2400dd2d5aad6eea6a6a5c089"
+dependencies = [
+ "r0",
+ "riscv",
+ "riscv-rt-macros",
+ "riscv-target",
+]
+
+[[package]]
+name = "riscv-rt-macros"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f38509d7b17c2f604ceab3e5ff8ac97bb8cd2f544688c512be75c715edaf4daf"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 1.0.109",
+]
+
+[[package]]
+name = "riscv-target"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "88aa938cda42a0cf62a20cfe8d139ff1af20c2e681212b5b34adb5a58333f222"
+dependencies = [
+ "lazy_static",
+ "regex",
+]
+
 [[package]]
 name = "rustc-demangle"
 version = "0.1.23"
@@ -2503,7 +3191,7 @@ version = "0.37.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b96e891d04aa506a6d1f318d2771bcb1c7dfda84e126660ace067c9b474bb2c0"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "errno",
  "io-lifetimes",
  "libc",
@@ -2568,7 +3256,7 @@ version = "0.32.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d051a07231e303f5f719da78cb6f7394f6d5b54f733aef5b0b447804a83edd7b"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "lazy_static",
  "libc",
  "num",
@@ -2592,7 +3280,7 @@ version = "2.9.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "05b64fb303737d99b81884b2c63433e9ae28abebe5eb5045dcdd175dc2ecf4de"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "core-foundation",
  "core-foundation-sys",
  "libc",
@@ -2624,6 +3312,17 @@ dependencies = [
  "serde_derive",
 ]
 
+[[package]]
+name = "serde-wasm-bindgen"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f3b143e2833c57ab9ad3ea280d21fd34e285a42837aeb0ee301f4f41890fa00e"
+dependencies = [
+ "js-sys",
+ "serde",
+ "wasm-bindgen",
+]
+
 [[package]]
 name = "serde_derive"
 version = "1.0.178"
@@ -2655,6 +3354,18 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "serde_urlencoded"
+version = "0.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d3491c14715ca2294c4d6a88f15e84739788c1d030eed8c110436aafdaa2f3fd"
+dependencies = [
+ "form_urlencoded",
+ "itoa",
+ "ryu",
+ "serde",
+]
+
 [[package]]
 name = "serialport"
 version = "4.0.1"
@@ -2662,7 +3373,7 @@ source = "git+https://github.com/metta-systems/serialport-rs?rev=7fec572529ec35b
 dependencies = [
  "CoreFoundation-sys",
  "IOKit-sys",
- "bitflags",
+ "bitflags 1.3.2",
  "cfg-if 1.0.0",
  "libudev 0.2.0",
  "mach 0.2.3",
@@ -2679,7 +3390,7 @@ checksum = "353dc2cbfc67c9a14a89a1292a9d8e819bd51066b083e08c1974ba08e3f48c62"
 dependencies = [
  "CoreFoundation-sys",
  "IOKit-sys",
- "bitflags",
+ "bitflags 1.3.2",
  "cfg-if 1.0.0",
  "libudev 0.3.0",
  "mach2",
@@ -2706,6 +3417,25 @@ dependencies = [
  "lazy_static",
 ]
 
+[[package]]
+name = "signal-hook"
+version = "0.3.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8621587d4798caf8eb44879d42e56b9a93ea5dcd315a6487c357130095b62801"
+dependencies = [
+ "libc",
+ "signal-hook-registry",
+]
+
+[[package]]
+name = "signal-hook-registry"
+version = "1.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d8229b473baa5980ac72ef434c4415e70c4b5e71b423043adb4ba059f89c99a1"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "slab"
 version = "0.4.8"
@@ -2771,6 +3501,28 @@ version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
 
+[[package]]
+name = "strum"
+version = "0.24.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "063e6045c0e62079840579a7e47a355ae92f60eb74daaf156fb1e84ba164e63f"
+dependencies = [
+ "strum_macros",
+]
+
+[[package]]
+name = "strum_macros"
+version = "0.24.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e385be0d24f186b4ce2f9982191e7101bb737312ad61c1f2f984f34bcf85d59"
+dependencies = [
+ "heck",
+ "proc-macro2",
+ "quote",
+ "rustversion",
+ "syn 1.0.109",
+]
+
 [[package]]
 name = "supports-color"
 version = "1.3.1"
@@ -3267,6 +4019,17 @@ dependencies = [
  "tracing-log",
 ]
 
+[[package]]
+name = "tracing-wasm"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4575c663a174420fa2d78f4108ff68f65bf2fbb7dd89f33749b6e826b3626e07"
+dependencies = [
+ "tracing 0.1.37",
+ "tracing-subscriber",
+ "wasm-bindgen",
+]
+
 [[package]]
 name = "try-lock"
 version = "0.2.4"
@@ -3360,6 +4123,12 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "830b7e5d4d90034032940e4ace0d9a9a057e7a45cd94e6c007832e39edb82f6d"
 
+[[package]]
+name = "value-bag"
+version = "1.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d92ccd67fb88503048c01b59152a04effd0782d035a83a6d256ce6085f08f4a3"
+
 [[package]]
 name = "vcell"
 version = "0.1.3"
@@ -3405,6 +4174,12 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "waker-fn"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9d5b2c62b4012a3e1eca5a7e077d13b3bf498c4073e33ccd58626607748ceeca"
+
 [[package]]
 name = "want"
 version = "0.3.1"
@@ -3451,6 +4226,18 @@ dependencies = [
  "wasm-bindgen-shared",
 ]
 
+[[package]]
+name = "wasm-bindgen-futures"
+version = "0.4.37"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c02dbc21516f9f1f04f187958890d7e6026df8d16540b7ad9492bc34a67cea03"
+dependencies = [
+ "cfg-if 1.0.0",
+ "js-sys",
+ "wasm-bindgen",
+ "web-sys",
+]
+
 [[package]]
 name = "wasm-bindgen-macro"
 version = "0.2.87"
@@ -3480,6 +4267,16 @@ version = "0.2.87"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ca6ad05a4870b2bf5fe995117d3728437bd27d7cd5f06f13c17443ef369775a1"
 
+[[package]]
+name = "web-sys"
+version = "0.3.64"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9b85cbef8c220a6abc02aefd892dfc0fc23afb1c6a426316ec33253a3877249b"
+dependencies = [
+ "js-sys",
+ "wasm-bindgen",
+]
+
 [[package]]
 name = "weezl"
 version = "0.1.7"
diff --git a/Cargo.toml b/Cargo.toml
index bfbb5ff7..eba7c93f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,21 +1,50 @@
+cargo-features = [
+    # Allows setting a different target triple on a per-crate level. This is
+    # required to include platform crates (which require specific target
+    # triples) in the main workspace.
+    #
+    # See: https://doc.rust-lang.org/cargo/reference/unstable.html#per-package-target
+    "per-package-target",
+    # Some platform implementations require specific RUSTFLAGS environment
+    # variables to configure the compiler's behavior, such as setting linker
+    # arguments. This unstable feature allows us to configure these RUSTFLAGS in
+    # the Cargo.toml on a per-crate basis, rather than requiring a separate
+    # `.cargo/config.toml` in each platform crate (and necessitating `cd`ing
+    # into those crates' directories in order to build the crate).
+    #
+    # See: https://doc.rust-lang.org/cargo/reference/unstable.html#profile-rustflags-option
+    "profile-rustflags",
+]
+
 [workspace]
 resolver = "2"
 members = [
     # mnemOS source
-    "source/kernel",
-    "source/abi",
-    "source/mstd",
-    "source/spitebuf",
-    "source/alloc",
-    "source/forth3",
-    "source/sermux-proto",
-    "source/trace-proto",
-    "source/config",
+    "source/*",
+
+    # tools
+    "tools/*",
+
+    # platforms
+    "platforms/allwinner-d1/*",
+    "platforms/beepy",
+    "platforms/esp32c3-buddy",
+    "platforms/melpomene",
+    "platforms/melpomene/melpo-config",
+    "platforms/pomelo",
+]
+# By default, run cargo commands without a specific package against everything
+# that can build cross-platform. This avoids incompatible feature unification
+# while running `cargo check`/`cargo fmt`/etc for most workspace crates.
+#
+# Incompatible crates are checked/built/formatted/documented individually by the
+# `just check`, `just clippy`, `just docs`, and `just fmt` Just recipes.
+default-members = [
+    # mnemOS source
+    "source/*",
 
     # tools
-    "tools/crowtty",
-    "tools/dumbloader",
-    "tools/f3repl",
+    "tools/*",
 
     # platforms
     "platforms/allwinner-d1/core",
@@ -23,8 +52,43 @@ members = [
     "platforms/melpomene",
     "platforms/melpomene/melpo-config",
 ]
+# this isn't actually a crate
+exclude = ["source/notes"]
+
+[workspace.package]
+edition = "2021"
+repository = "https://github.com/tosc-rs/mnemos"
+homepage = "https://mnemos.dev"
+license = "MIT OR Apache-2.0"
+
+[profile.release]
+codegen-units = 1 # better optimizations
+debug = 2 # symbols are nice and they don't increase the size on Flash
+lto = true # better optimizations
+
+[profile.release.package.mnemos-esp32c3-buddy]
+# opt-level='z' is broken on esp32c3.
+#
+# See: https://github.com/esp-rs/esp-hal/pull/198
+opt-level = "s"
+rustflags = [
+    "-C", "link-arg=-Tlinkall.x",
+    # Required to obtain backtraces (e.g. when using the "esp-backtrace" crate.)
+    # NOTE: May negatively impact performance of produced code
+    "-C", "force-frame-pointers",
+]
 
-exclude = ["platforms/pomelo", "platforms/esp32c3-buddy"]
+[profile.dev.package.mnemos-esp32c3-buddy]
+# opt-level='z' is broken on esp32c3.
+#
+# See: https://github.com/esp-rs/esp-hal/pull/198
+opt-level = "s"
+rustflags = [
+    "-C", "link-arg=-Tlinkall.x",
+    # Required to obtain backtraces (e.g. when using the "esp-backtrace" crate.)
+    # NOTE: May negatively impact performance of produced code
+    "-C", "force-frame-pointers",
+]
 
 [patch.crates-io.maitake]
 git = "https://github.com/hawkw/mycelium.git"
diff --git a/default.nix b/default.nix
index aefe3b2a..9c3fe8bd 100644
--- a/default.nix
+++ b/default.nix
@@ -30,6 +30,7 @@ buildEnv {
     SDL2.dev
     # other stuff
     bash
+    zlib
   ];
   passthru = with pkgs; {
     SSL_CERT_FILE = "${cacert}/etc/ssl/certs/ca-bundle.crt";
diff --git a/justfile b/justfile
index a5861292..708c282e 100644
--- a/justfile
+++ b/justfile
@@ -25,13 +25,9 @@ _fmt := if env_var_or_default("GITHUB_ACTIONS", "") != "true" { "" } else {
 
 _d1_start_addr := "0x40000000"
 _d1_bin_path := "target/riscv64imac-unknown-none-elf"
-_d1_dir := "platforms/allwinner-d1/boards"
+_d1_pkg := "mnemos-d1"
 
-_pomelo_dir := "platforms/pomelo"
-
-_melpo_dir := "platforms/melpomene"
-
-_espbuddy_dir := "platforms/esp32c3-buddy"
+_espbuddy_pkg := "mnemos-esp32c3-buddy"
 
 # arguments to pass to all RustDoc invocations
 _rustdoc := _cargo + " doc --no-deps --all-features"
@@ -45,61 +41,74 @@ default:
     @echo ""
     @just --list
 
-# check all packages, across workspaces
-check: && (_check-dir _pomelo_dir ) (_check-dir _melpo_dir) (_check-dir _espbuddy_dir)
+# check all crates, across workspaces
+check: && (check-crate _d1_pkg) (check-crate _espbuddy_pkg)
+    {{ _cargo }} check \
+        --lib --bins --examples --tests --benches \
+        {{ _fmt }}
+
+# check a crate.
+check-crate crate:
     {{ _cargo }} check \
-        --workspace \
         --lib --bins --examples --tests --benches --all-features \
+        --package {{ crate }} \
         {{ _fmt }}
 
-# run Clippy checks for all packages, across workspaces.
-clippy: && (_clippy-dir _pomelo_dir ) (_clippy-dir _melpo_dir) (_clippy-dir _espbuddy_dir)
-    {{ _cargo }} clippy --workspace \
+# run Clippy checks for all crates, across workspaces.
+clippy: && (clippy-crate _d1_pkg) (clippy-crate _espbuddy_pkg)
+    {{ _cargo }} clippy \
         --lib --bins --examples --tests --benches --all-features \
         {{ _fmt }}
 
+# run clippy checks for a crate.
+clippy-crate crate:
+    {{ _cargo }} clippy \
+        --lib --bins --examples --tests --benches \
+        --package {{ crate }} \
+        {{ _fmt }}
+
 # test all packages, across workspaces
 test: (_get-cargo-command "nextest" "cargo-nextest" no-nextest)
-    {{ _cargo }} nextest run --workspace --all-features
-    # uncomment this if we actually add tests to the D1 platform
-    # (cd {{ _d1_dir }}; {{ _cargo }} nextest run --workspace)
+    {{ _cargo }} nextest run --all-features
 
-# run rustfmt for all packages, across workspaces
+# run rustfmt for all crates, across workspaces
 fmt:
-    {{ _cargo }} fmt --all
-    (cd {{ _d1_dir }}; {{ _cargo }} fmt --all)
+    {{ _cargo }} fmt
+    {{ _cargo }} fmt --package {{ _d1_pkg }}
+    {{ _cargo }} fmt --package {{ _espbuddy_pkg }}
 
 # build a Mnemos binary for the Allwinner D1
 build-d1 board='mq-pro': (_get-cargo-command "objcopy" "cargo-binutils")
-    cd {{ _d1_dir}} && {{ _cargo }} build --bin {{ board }} --release
-    cd {{ _d1_dir}} && \
-        {{ _cargo }} objcopy \
+    {{ _cargo }} build \
+        --package {{ _d1_pkg }} \
+        --bin {{ board }} \
+        --release
+    {{ _cargo }} objcopy \
+        --package {{ _d1_pkg }} \
         --bin {{ board }} \
         --release \
         -- \
-        -O binary \
-        ./{{ _d1_bin_path }}/mnemos-{{ board }}.bin
+        -O binary {{ _d1_bin_path }}/mnemos-{{ board }}.bin
 
 # flash an Allwinner D1 using xfel
 flash-d1 board='mq-pro': (build-d1 board)
     xfel ddr d1
-    xfel write {{ _d1_start_addr }} {{ _d1_dir}}/{{ _d1_bin_path }}/mnemos-{{ board }}.bin
+    xfel write {{ _d1_start_addr }} {{ _d1_bin_path }}/mnemos-{{ board }}.bin
     xfel exec {{ _d1_start_addr }}
 
 # build a MnemOS binary for the ESP32-C3
 build-c3 board:
-    cd {{ _espbuddy_dir }} && \
-    {{ _cargo }} build \
-        --release \
+    {{ _cargo }} build --release \
+        --package {{ _espbuddy_pkg }} \
         --bin {{ board }}
 
 # flash an ESP32-C3 with the MnemOS WiFi Buddy firmware
 flash-c3 board *espflash-args: (_get-cargo-command "espflash" "cargo-espflash") (build-c3 board)
-    cd {{ _espbuddy_dir }} && \
-        {{ _cargo }} espflash flash \
-            --release \
-            --bin {{ board }} \
-            {{ espflash-args }}
+    {{ _cargo }} espflash flash \
+        --release \
+        --package {{ _espbuddy_pkg }} \
+        --bin {{ board }} \
+        {{ espflash-args }}
 
 # run crowtty (a host serial multiplexer, log viewer, and pseudo-keyboard)
 crowtty *FLAGS:
@@ -107,8 +116,18 @@ crowtty *FLAGS:
 
 # run the Melpomene simulator
 melpomene *FLAGS:
-    @cd {{ _melpo_dir }}; \
-        cargo run --release --bin melpomene -- {{ FLAGS }}
+    @{{ _cargo }} run --release --bin melpomene -- {{ FLAGS }}
+
+# build all RustDoc documentation
+all-docs *FLAGS: (docs FLAGS) (docs "-p " + _d1_pkg + FLAGS) (docs "-p " + _d1_pkg + FLAGS)
+
+# run RustDoc
+docs *FLAGS:
+    env RUSTDOCFLAGS="--cfg docsrs -Dwarnings" \
+        {{ _cargo }} doc \
+        --all-features \
+        {{ FLAGS }} \
+        {{ _fmt }}
 
 _get-cargo-command name pkg skip='':
     #!/usr/bin/env bash
@@ -128,12 +147,4 @@ _get-cargo-command name pkg skip='':
     err "missing cargo-{{ name }} executable"
     if confirm "       install it?"; then
         cargo install {{ pkg }}
-    fi
-
-# run clippy for a subdirectory
-_clippy-dir dir:
-    cd {{ dir }}; {{ _cargo }} clippy --lib --bins {{ _fmt }}
-
-# run cargo check for a subdirectory
-_check-dir dir:
-    cd {{ dir }}; {{ _cargo }} check --lib --bins {{ _fmt }}
\ No newline at end of file
+    fi
\ No newline at end of file
diff --git a/platforms/allwinner-d1/README.md b/platforms/allwinner-d1/README.md
index b64afc64..c2ecf17b 100644
--- a/platforms/allwinner-d1/README.md
+++ b/platforms/allwinner-d1/README.md
@@ -16,16 +16,6 @@ This directory contains MnemOS platform support for the Allwinner D1 RISC-V SoC.
 
 ### Building
 
-> **Note**
->
-> The `boards/` directory is its own Cargo workspace. This is in order  to avoid
-> blowing away artifacts for host tools cached in the main workspace when
-> building the MnemOS binary for a target.
-
-To build for the Allwinner D1 platform, either build from within the
-`allwinner-d1/boards/` directory, or use the [`just build-d1` Just
-recipe][just].
-
 This crate contains a separate Cargo bin target for each supported D1 board.
 These bin targets depend on the [`mnemos-d1-core` crate] for the majority of the
 platform implementation, and configure the D1's I/O pins based on how those pins
@@ -35,6 +25,14 @@ provided:
 * `mq-pro`: MnemOS for the [MangoPi MQ Pro]
 * `lichee-rv`: MnemOS for the [Sipeed Lichee RV]
 
+The simplest way to build a MnemOS image for an Allwinner D1 board is to use the
+[`just build-d1` Just recipe][just].
+
+> [!IMPORTANT]
+>
+> Running Just recipes requires Just to be installed. See
+> [https://just.systems](https://just.systems) for details on using Just.
+
 The `just build-d1` recipe takes an optional argument to select which bin target
 is built; by default, the `mq-pro` bin target is selected. For example:
 
@@ -44,6 +42,25 @@ $ just build-d1 mq-pro      # also builds MnemOS for the MQ Pro
 $ just build-d1 lichee-rv   # builds MnemOS for the Lichee RV
 ```
 
+Alternatively, Allwinner D1 images can be built manually using Cargo. To build
+using Cargo, run the following commands:
+
+```console
+# set which board binary to build
+$ export BOARD="mq-pro" # or "lichee-rv"
+
+# build the MnemOS binary for that board
+$ cargo build -p mnemos-d1 --board $BOARD --release
+
+# produce a binary that can be flashed to the board
+$ cargo objcopy -p mnemos-d1 --bin $BOARD -- release \
+     -O binary target/riscv64imac-unknown-none-elf/mnemos-$BOARD.bin
+```
+
+> [!IMPORTANT]
+>
+> Note that `cargo-binutils` must be installed in order to use `cargo objcopy`.
+> The `just build-d1` recipe will prompt to install it automatically.
 ### Running
 
 The quickest way to get MnemOS running on a D1 SBC is using [`xfel`].
@@ -69,7 +86,7 @@ xfel write 0x40000000 platforms/allwinner-d1/boards/target/riscv64imac-unknown-n
 xfel exec 0x40000000
 ```
 
-> **Note**
+> [!NOTE]
 >
 > When flashing the MangoPi MQ Pro using `just flash-d1`, ensure that the USB
 > cable is plugged in to the USB-C port on the board labeled as "OTG" on the
@@ -95,7 +112,7 @@ building `xfel` from source for Linux, MacOS, and Windows can be found
 [here][xfel-build]. Pre-built `xfel` binaries for Windows are available
 [here][xfel-win].
 
-> **Note**
+> [!NOTE]
 >
 > In addition to the official distribution channels, I (Eliza) have written [a
 > Nix derivation for `xfel`][xfel-nix]. Eventually, I'd like to upstream this to
diff --git a/platforms/allwinner-d1/boards/.cargo/config.toml b/platforms/allwinner-d1/boards/.cargo/config.toml
deleted file mode 100644
index 86e09f16..00000000
--- a/platforms/allwinner-d1/boards/.cargo/config.toml
+++ /dev/null
@@ -1,2 +0,0 @@
-[build]
-target = "riscv64imac-unknown-none-elf"
diff --git a/platforms/allwinner-d1/boards/Cargo.lock b/platforms/allwinner-d1/boards/Cargo.lock
index c4804484..33b8fbd0 100644
--- a/platforms/allwinner-d1/boards/Cargo.lock
+++ b/platforms/allwinner-d1/boards/Cargo.lock
@@ -478,7 +478,6 @@ dependencies = [
 name = "mnemos-abi"
 version = "0.1.0"
 dependencies = [
- "defmt",
  "postcard",
  "serde",
 ]
diff --git a/platforms/allwinner-d1/boards/Cargo.toml b/platforms/allwinner-d1/boards/Cargo.toml
index 879d562c..164f0bfc 100644
--- a/platforms/allwinner-d1/boards/Cargo.toml
+++ b/platforms/allwinner-d1/boards/Cargo.toml
@@ -1,8 +1,4 @@
-[workspace]
-resolver = "2"
-members = [
-    "."
-]
+cargo-features = ["per-package-target"]
 
 [package]
 name = "mnemos-d1"
@@ -12,6 +8,7 @@ repository = "https://github.com/tosc-rs/mnemos"
 homepage = "https://mnemos.dev"
 readme = "./README.md"
 license = "MIT OR Apache-2.0"
+forced-target = "riscv64imac-unknown-none-elf"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
@@ -60,37 +57,4 @@ features = ["attributes"]
 default-features = false
 
 [dependencies.mnemos-beepy]
-path = "../../beepy"
-
-### patches ###
-
-[patch.crates-io.maitake]
-git = "https://github.com/hawkw/mycelium.git"
-rev = "101a4abaa19afdd131b334a16d92c9fb4909c064"
-
-[patch.crates-io.mycelium-util]
-git = "https://github.com/hawkw/mycelium.git"
-rev = "101a4abaa19afdd131b334a16d92c9fb4909c064"
-
-# Use the `mycelium-bitfield` crate from the Mycelium monorepo rather than
-# crates.io.
-# NOTE: this patch, unlike the patches for `maitake` and `mycelium-util`, (which
-# are unpublished), is not *strictly* necessary, as `mycelium-bitfield` *is*
-# published to crates.io. However, we may as well depend on the git version,
-# since it's already in our dependency tree as a transitive dep of `maitake` ---
-# having both a Git dep and a crates.io dep seems unfortunate.
-[patch.crates-io.mycelium-bitfield]
-git = "https://github.com/hawkw/mycelium.git"
-rev = "101a4abaa19afdd131b334a16d92c9fb4909c064"
-
-[patch.crates-io.cordyceps]
-git = "https://github.com/hawkw/mycelium.git"
-rev = "101a4abaa19afdd131b334a16d92c9fb4909c064"
-
-[patch.crates-io.mnemos-alloc]
-path = "../../../source/alloc"
-
-# NOTE: keep this patch in sync with the one in the main kernel workspace!
-[patch.crates-io.bbq10kbd]
-git = "https://github.com/hawkw/bbq10kbd"
-branch = "eliza/async"
+path = "../../beepy"
\ No newline at end of file
diff --git a/platforms/allwinner-d1/core/Cargo.toml b/platforms/allwinner-d1/core/Cargo.toml
index 37b0c313..5800709b 100644
--- a/platforms/allwinner-d1/core/Cargo.toml
+++ b/platforms/allwinner-d1/core/Cargo.toml
@@ -1,3 +1,5 @@
+cargo-features = ["per-package-target", "profile-rustflags"]
+
 [package]
 name = "mnemos-d1-core"
 version = "0.1.0"
diff --git a/platforms/beepy/Cargo.toml b/platforms/beepy/Cargo.toml
index a694ccfd..4d93cfab 100644
--- a/platforms/beepy/Cargo.toml
+++ b/platforms/beepy/Cargo.toml
@@ -1,3 +1,5 @@
+cargo-features = ["per-package-target", "profile-rustflags"]
+
 [package]
 name = "mnemos-beepy"
 version = "0.1.0"
diff --git a/platforms/esp32c3-buddy/.cargo/config.toml b/platforms/esp32c3-buddy/.cargo/config.toml
deleted file mode 100644
index 9842a7dc..00000000
--- a/platforms/esp32c3-buddy/.cargo/config.toml
+++ /dev/null
@@ -1,21 +0,0 @@
-[target.riscv32imac-unknown-none-elf]
-runner = "espflash flash --monitor"
-
-[build]
-rustflags = [
-  "-C", "link-arg=-Tlinkall.x",
-  # Required to obtain backtraces (e.g. when using the "esp-backtrace" crate.)
-  # NOTE: May negatively impact performance of produced code
-  "-C", "force-frame-pointers",
-]
-
-# this isn't technically the correct target --- it *should* be
-# `riscv32-imc-unknown-none-elf`. but, because we're using the
-# `riscv-atomic-emulation-trap` crate, we want to emit these instructions, and
-# just setting `target_has_atomic` in `rustflags` makes `portable-atomic` not
-# compile, since it does feature detection based on both `cfg_target_has_atomic`
-# *and* the target triple. oh well.
-target = "riscv32imac-unknown-none-elf"
-
-[unstable]
-build-std = ["core", "alloc"]
\ No newline at end of file
diff --git a/platforms/esp32c3-buddy/Cargo.toml b/platforms/esp32c3-buddy/Cargo.toml
index 986d62fb..53046569 100644
--- a/platforms/esp32c3-buddy/Cargo.toml
+++ b/platforms/esp32c3-buddy/Cargo.toml
@@ -1,8 +1,4 @@
-[workspace]
-resolver = "2"
-members = [
-    "."
-]
+cargo-features = ["per-package-target", "profile-rustflags"]
 
 [package]
 name = "mnemos-esp32c3-buddy"
@@ -17,11 +13,13 @@ homepage = "https://mnemos.dev"
 readme = "./README.md"
 license = "MIT OR Apache-2.0"
 
-[profile.release]
-# it turns out that we basically just "can't" build in debug mode (or our code
-# will fault), so just build in release mode all the time but keep debug
-# symbols.
-debug = true
+# this isn't technically the correct target --- it *should* be
+# `riscv32-imc-unknown-none-elf`. but, because we're using the
+# `riscv-atomic-emulation-trap` crate, we want to emit these instructions, and
+# just setting `target_has_atomic` in `rustflags` makes `portable-atomic` not
+# compile, since it does feature detection based on both `cfg_target_has_atomic`
+# *and* the target triple. oh well.
+forced-target = "riscv32imac-unknown-none-elf"
 
 [lib]
 test = false
@@ -70,32 +68,4 @@ default-features = false
 [dependencies.futures]
 version = "0.3.21"
 default-features = false
-features = ["async-await"]
-
-### patches ###
-
-[patch.crates-io.maitake]
-git = "https://github.com/hawkw/mycelium.git"
-rev = "101a4abaa19afdd131b334a16d92c9fb4909c064"
-
-[patch.crates-io.mycelium-util]
-git = "https://github.com/hawkw/mycelium.git"
-rev = "101a4abaa19afdd131b334a16d92c9fb4909c064"
-
-# Use the `mycelium-bitfield` crate from the Mycelium monorepo rather than
-# crates.io.
-# NOTE: this patch, unlike the patches for `maitake` and `mycelium-util`, (which
-# are unpublished), is not *strictly* necessary, as `mycelium-bitfield` *is*
-# published to crates.io. However, we may as well depend on the git version,
-# since it's already in our dependency tree as a transitive dep of `maitake` ---
-# having both a Git dep and a crates.io dep seems unfortunate.
-[patch.crates-io.mycelium-bitfield]
-git = "https://github.com/hawkw/mycelium.git"
-rev = "101a4abaa19afdd131b334a16d92c9fb4909c064"
-
-[patch.crates-io.cordyceps]
-git = "https://github.com/hawkw/mycelium.git"
-rev = "101a4abaa19afdd131b334a16d92c9fb4909c064"
-
-[patch.crates-io.mnemos-alloc]
-path = "../../source/alloc"
\ No newline at end of file
+features = ["async-await"]
\ No newline at end of file
diff --git a/platforms/esp32c3-buddy/README.md b/platforms/esp32c3-buddy/README.md
index 7d190b08..7e475981 100644
--- a/platforms/esp32c3-buddy/README.md
+++ b/platforms/esp32c3-buddy/README.md
@@ -18,15 +18,13 @@ either board can be used interchangeably.
 
 ### Building
 
-> **Note**
->
-> This crate is its own Cargo workspace. This is in order to avoid
-> blowing away artifacts for host tools cached in the main workspace when
-> building the MnemOS binary for a target.
+The simplest way to build a MnemOS image for the [ESP32-C3] platform to use the
+[`just build-c3` Just recipe][just].
 
-To build for the [ESP32-C3] platform, either build from within the
-`platforms/esp32c3-buddy` directory, or use the [`just build-c3` Just
-recipe][just].
+> [!IMPORTANT]
+>
+> Running Just recipes requires Just to be installed. See
+> [https://just.systems](https://just.systems) for details on using Just.
 
 The two supported ESP32-C3 dev boards are pinout-compatible, but route different
 pins on the ESP32 to the pins on the dev board. Therefore, this crate contains
@@ -44,6 +42,16 @@ $ just build-c3 qtpy   # builds MnemOS for the Adafruit QT Py ESP32-C3
 $ just build-c3 xiao   # builds MnemOS for the Seeedstudio XIAO ESP32-C3
 ```
 
+Alternatively, Allwinner D1 images can be built manually using Cargo. To build
+using Cargo, run:
+
+```console
+# builds MnemOS for the Adafruit QT Py ESP32-C3
+$ cargo build -p mnemos-esp32c3-buddy --bin qtpy --release
+# builds MnemOS for the Seeedstudio XIAO ESP32-C3
+$ cargo build -p mnemos-esp32c3-buddy --bin xiao --release
+```
+
 ### Flashing & Running
 
 ESP32-C3 dev boards can be flashed over USB using [`cargo-espflash`]. To flash
@@ -58,7 +66,7 @@ $ just flash-c3 qtpy   # build and flash the Adafruit QT Py ESP32-C3
 $ just flash-c3 xiao   # build and flash the Seeedstudio XIAO ESP32-C3
 ```
 
-> **Note**
+> [!IMPORTANT]
 >
 > In order to flash an ESP32-C3 board, the [`cargo-espflash`] executable
 > must be installed. The `just flash-c3` Just recipe will check if
@@ -69,9 +77,32 @@ If everything worked successfully, you should see output similar to this:
 ```console
 $ just flash-c3 qtpy
        Found cargo-espflash
-cd platforms/esp32c3-buddy && cargo build --release
+cargo build --package mnemos-esp32c3-buddy --bin qtpy --release
     Finished release [optimized] target(s) in 0.04s
-cd platforms/esp32c3-buddy && cargo espflash flash --monitor
+cargo espflash --package mnemos-esp32c3-buddy --bin qtpy flash --monitor
+[2023-07-28T16:40:37Z INFO ] Serial port: '/dev/ttyACM0'
+[2023-07-28T16:40:37Z INFO ] Connecting...
+[2023-07-28T16:40:38Z INFO ] Using flash stub
+    Finished dev [unoptimized + debuginfo] target(s) in 0.04s
+Chip type:         esp32c3 (revision v0.3)
+Crystal frequency: 40MHz
+Flash size:        4MB
+Features:          WiFi, BLE
+MAC address:       34:b4:72:ea:44:18
+App/part. size:    209,760/4,128,768 bytes, 5.08%
+[00:00:00] [========================================]      13/13      0x0
+[00:00:00] [========================================]       1/1       0x8000
+[00:00:01] [========================================]      67/67      0x10000
+[2023-07-28T16:40:41Z INFO ] Flashing has completed!
+```
+
+Alternatively, the board can be flashed manually using [`cargo-espflash`]. For
+example:
+```console
+$ cargo espflash flash \
+    --package mnemos-esp32c3-buddy \
+    --bin qtpy \ # or 'xiao'
+    --monitor
 [2023-07-28T16:40:37Z INFO ] Serial port: '/dev/ttyACM0'
 [2023-07-28T16:40:37Z INFO ] Connecting...
 [2023-07-28T16:40:38Z INFO ] Using flash stub
diff --git a/platforms/melpomene/Cargo.toml b/platforms/melpomene/Cargo.toml
index 29d1197f..d8edffb2 100644
--- a/platforms/melpomene/Cargo.toml
+++ b/platforms/melpomene/Cargo.toml
@@ -1,3 +1,5 @@
+cargo-features = ["per-package-target", "profile-rustflags"]
+
 [package]
 name = "melpomene"
 version = "0.1.0"
diff --git a/platforms/pomelo/Cargo.toml b/platforms/pomelo/Cargo.toml
index fbfe5b3d..f5d47529 100644
--- a/platforms/pomelo/Cargo.toml
+++ b/platforms/pomelo/Cargo.toml
@@ -76,16 +76,4 @@ version = "0.4.37"
 
 [dependencies.async-std]
 version = "1.12.0"
-features = ["unstable"]
-
-[patch.crates-io.maitake]
-git = "https://github.com/hawkw/mycelium.git"
-rev = "101a4abaa19afdd131b334a16d92c9fb4909c064"
-
-[patch.crates-io.mycelium-util]
-git = "https://github.com/hawkw/mycelium.git"
-rev = "101a4abaa19afdd131b334a16d92c9fb4909c064"
-
-[patch.crates-io.cordyceps]
-git = "https://github.com/hawkw/mycelium.git"
-rev = "101a4abaa19afdd131b334a16d92c9fb4909c064"
+features = ["unstable"]
\ No newline at end of file
diff --git a/platforms/pomelo/src/main.rs b/platforms/pomelo/src/main.rs
index 21c1d906..c72065f9 100644
--- a/platforms/pomelo/src/main.rs
+++ b/platforms/pomelo/src/main.rs
@@ -11,9 +11,7 @@ use gloo_utils::format::JsValueSerdeExt;
 use mnemos_alloc::heap::MnemosAlloc;
 use mnemos_kernel::{
     forth::{self, Forth},
-    services::{
-        serial_mux::{PortHandle,WellKnown},
-    },
+    services::serial_mux::{PortHandle, WellKnown},
     Kernel, KernelSettings,
 };
 use pomelo::{
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index 08ea03e9..b69c3ca8 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,7 +1,12 @@
 [toolchain]
-channel = "nightly-2023-05-29"
+channel = "nightly-2023-08-08"
 profile = "minimal"
-components = ["rustfmt", "llvm-tools-preview", "rust-src"]
+components = [
+    "clippy",
+    "rustfmt",
+    "rust-src",
+    "llvm-tools-preview",
+]
 targets = [
     # Allwinner D1
     "riscv64imac-unknown-none-elf",
diff --git a/shell.nix b/shell.nix
index 9b243261..1b4c2c21 100644
--- a/shell.nix
+++ b/shell.nix
@@ -9,16 +9,6 @@ let
       ++ mnemos.nativeBuildInputs;
   };
 in mkShell {
-  nativeBuildInputs = [ pkg-config ];
-  buildInputs = [
-    clang
-    libclang
-    systemd
-    udev
-    # for melpomene
-    SDL2
-    SDL2.dev
-  ];
   packages = [
     # devtools
     just
diff --git a/source/abi/Cargo.toml b/source/abi/Cargo.toml
index 17f62708..506342ab 100644
--- a/source/abi/Cargo.toml
+++ b/source/abi/Cargo.toml
@@ -1,3 +1,5 @@
+cargo-features = ["per-package-target", "profile-rustflags"]
+
 [package]
 name = "mnemos-abi"
 version = "0.1.0"
diff --git a/source/alloc/Cargo.toml b/source/alloc/Cargo.toml
index e4db8409..f5b5e7a1 100644
--- a/source/alloc/Cargo.toml
+++ b/source/alloc/Cargo.toml
@@ -1,3 +1,5 @@
+cargo-features = ["per-package-target", "profile-rustflags"]
+
 [package]
 name = "mnemos-alloc"
 description = """
diff --git a/source/config/Cargo.toml b/source/config/Cargo.toml
index 44f16657..0d4ac900 100644
--- a/source/config/Cargo.toml
+++ b/source/config/Cargo.toml
@@ -1,3 +1,5 @@
+cargo-features = ["per-package-target", "profile-rustflags"]
+
 [package]
 name = "mnemos-config"
 version = "0.1.0"
diff --git a/source/forth3/Cargo.toml b/source/forth3/Cargo.toml
index c150f537..296b0dbf 100644
--- a/source/forth3/Cargo.toml
+++ b/source/forth3/Cargo.toml
@@ -1,3 +1,5 @@
+cargo-features = ["per-package-target", "profile-rustflags"]
+
 [package]
 name = "forth3"
 version = "0.1.0"
diff --git a/source/forth3/src/lib.rs b/source/forth3/src/lib.rs
index 15439920..ab86000d 100644
--- a/source/forth3/src/lib.rs
+++ b/source/forth3/src/lib.rs
@@ -118,11 +118,7 @@ pub struct CallContext<T: 'static> {
 
 impl<T: 'static> Clone for CallContext<T> {
     fn clone(&self) -> Self {
-        Self {
-            eh: self.eh,
-            idx: self.idx,
-            len: self.len,
-        }
+        *self
     }
 }
 
diff --git a/source/kernel/Cargo.toml b/source/kernel/Cargo.toml
index ee30f519..8536b323 100644
--- a/source/kernel/Cargo.toml
+++ b/source/kernel/Cargo.toml
@@ -1,3 +1,5 @@
+cargo-features = ["per-package-target", "profile-rustflags"]
+
 [package]
 name = "mnemos"
 version = "0.1.0"
diff --git a/source/kernel/src/services/emb_display.rs b/source/kernel/src/services/emb_display.rs
index 66503b59..d3a73280 100644
--- a/source/kernel/src/services/emb_display.rs
+++ b/source/kernel/src/services/emb_display.rs
@@ -354,7 +354,7 @@ impl DrawTarget for MonoChunk {
         I: IntoIterator<Item = Pixel<Self::Color>>,
     {
         for Pixel(coord, color) in pixels.into_iter() {
-            let Ok((x, y)): Result<(u32, u32) , _> =  coord.try_into() else {
+            let Ok((x, y)): Result<(u32, u32), _> = coord.try_into() else {
                 continue;
             };
             self.draw_pixel(x, y, color.is_on());
diff --git a/source/mstd/Cargo.toml b/source/mstd/Cargo.toml
index fe5fb23f..2151a709 100644
--- a/source/mstd/Cargo.toml
+++ b/source/mstd/Cargo.toml
@@ -1,3 +1,5 @@
+cargo-features = ["per-package-target", "profile-rustflags"]
+
 [package]
 name = "mnemos-std"
 version = "0.1.0"
diff --git a/source/sermux-proto/Cargo.toml b/source/sermux-proto/Cargo.toml
index 7e93dfbf..f41f6a40 100644
--- a/source/sermux-proto/Cargo.toml
+++ b/source/sermux-proto/Cargo.toml
@@ -1,3 +1,5 @@
+cargo-features = ["per-package-target", "profile-rustflags"]
+
 [package]
 name = "sermux-proto"
 version = "0.1.0"
diff --git a/source/spitebuf/Cargo.toml b/source/spitebuf/Cargo.toml
index bc93958c..b748c6ca 100644
--- a/source/spitebuf/Cargo.toml
+++ b/source/spitebuf/Cargo.toml
@@ -1,3 +1,5 @@
+cargo-features = ["per-package-target", "profile-rustflags"]
+
 [package]
 name = "spitebuf"
 version = "0.1.0"
diff --git a/source/trace-proto/Cargo.toml b/source/trace-proto/Cargo.toml
index 50657927..2efe3899 100644
--- a/source/trace-proto/Cargo.toml
+++ b/source/trace-proto/Cargo.toml
@@ -1,3 +1,5 @@
+cargo-features = ["per-package-target", "profile-rustflags"]
+
 [package]
 name = "mnemos-trace-proto"
 version = "0.1.0"
diff --git a/tools/crowtty/Cargo.toml b/tools/crowtty/Cargo.toml
index 778a7d17..993c3cb8 100644
--- a/tools/crowtty/Cargo.toml
+++ b/tools/crowtty/Cargo.toml
@@ -1,7 +1,8 @@
+cargo-features = ["per-package-target", "profile-rustflags"]
+
 [package]
 name = "crowtty"
 version = "0.1.0"
-edition = "2021"
 description = """
 crowtty is a host tool, aimed at speaking the sermux protocol with a
 simulator or physical target. It allows for receiving tracing messages,
@@ -11,6 +12,7 @@ repository = "https://github.com/tosc-rs/mnemos"
 homepage = "https://mnemos.dev"
 readme = "./README.md"
 license = "MIT OR Apache-2.0"
+edition = "2021"
 
 ### See `main.rs::serial` comments for why these duplicate dependencies exit
 
diff --git a/tools/crowtty/src/trace.rs b/tools/crowtty/src/trace.rs
index 58013a1a..20cd1f71 100644
--- a/tools/crowtty/src/trace.rs
+++ b/tools/crowtty/src/trace.rs
@@ -177,8 +177,12 @@ impl TraceWorker {
                 parent: _,
                 fields,
             } => {
-                let Some(meta) =  self.metas.get(&meta) else {
-                    println!("{} {} UNKNOWN: {meta:?}", self.tag, "META".if_supports_color(Stream::Stdout, |x| x.bright_blue()));
+                let Some(meta) = self.metas.get(&meta) else {
+                    println!(
+                        "{} {} UNKNOWN: {meta:?}",
+                        self.tag,
+                        "META".if_supports_color(Stream::Stdout, |x| x.bright_blue())
+                    );
                     return;
                 };
                 let target = meta.target.as_str();
@@ -215,7 +219,11 @@ impl TraceWorker {
                 let start = Instant::now();
                 let mut repr = String::new();
                 let Some(meta) = self.metas.get(&meta) else {
-                    println!("{} {} UNKNOWN: {meta:?}", self.tag, "META".if_supports_color(Stream::Stdout, |x| x.bright_blue()));
+                    println!(
+                        "{} {} UNKNOWN: {meta:?}",
+                        self.tag,
+                        "META".if_supports_color(Stream::Stdout, |x| x.bright_blue())
+                    );
                     return;
                 };
 
diff --git a/tools/dumbloader/Cargo.toml b/tools/dumbloader/Cargo.toml
index 488c7463..213e266a 100644
--- a/tools/dumbloader/Cargo.toml
+++ b/tools/dumbloader/Cargo.toml
@@ -1,3 +1,5 @@
+cargo-features = ["per-package-target", "profile-rustflags"]
+
 [package]
 name = "dumbloader"
 version = "0.1.0"
diff --git a/tools/f3repl/Cargo.toml b/tools/f3repl/Cargo.toml
index 3ffab841..736dcb3c 100644
--- a/tools/f3repl/Cargo.toml
+++ b/tools/f3repl/Cargo.toml
@@ -1,3 +1,5 @@
+cargo-features = ["per-package-target", "profile-rustflags"]
+
 [package]
 name = "f3repl"
 version = "0.1.0"