Support GitHub Enterprise Server using ARC

.gitattributes

@@ -0,0 +1,2 @@
+dist/* linguist-generated=true
+

.github/workflows/ci.yml

@@ -18,7 +18,13 @@ jobs:
       - run: test $(git status --porcelain=v1 2>/dev/null | wc -l) -eq 0
   run-x86_64-linux:
     name: Run x86_64 Linux
-    runs-on: ubuntu-22.04
+    strategy:
+      matrix:
+        runner:
+            - ubuntu-latest
+            - nscloud-ubuntu-22.04-amd64-4x16
+            - namespace-profile-default-arm64
+    runs-on: ${{ matrix.runner }}
     steps:
       - uses: actions/checkout@v3
       - name: Install Nix

README.md

@@ -91,6 +91,7 @@ Differing from the upstream [Nix](https://github.com/NixOS/nix) installer script
 | `extra-args`             | Extra arguments to pass to the planner (prefer using structured `with:` arguments unless using a custom [planner]!)                                                                                                                                                            | string                                     |                                                      |
 | `extra-conf`             | Extra configuration lines for `/etc/nix/nix.conf` (includes `access-tokens` with `secrets.GITHUB_TOKEN` automatically if `github-token` is set)                                                                                                                                | string                                     |                                                      |
 | `flakehub`               | Log in to FlakeHub to pull private flakes using the GitHub Actions [JSON Web Token](https://jwt.io) (JWT), which is bound to the `api.flakehub.com` audience.                                                                                                                  | Boolean                                    | `false`                                              |
+| `force-docker-shim`      | Force the use of Docker as a process supervisor. This setting is automatically enabled when necessary.                                                                                                                                                                         | Boolean                                    | `false`                                              |
 | `github-token`           | A [GitHub token] for making authenticated requests (which have a higher rate-limit quota than unauthenticated requests)                                                                                                                                                        | string                                     | `${{ github.token }}`                                |
 | `github-server-url`      | The URL for the GitHub server, to use with the `github-token` token. Defaults to the current GitHub server, supporting GitHub Enterprise Server automatically. Only change this value if the provided `github-token` is for a different GitHub server than the current server. | string                                     | `${{ github.server }}`                               |
 | `init`                   | The init system to configure (requires `planner: linux-multi`)                                                                                                                                                                                                                 | enum (`none` or `systemd`)                 |                                                      |

action.yml

@@ -17,6 +17,9 @@ inputs:
     description: Automatically log in to your [FlakeHub](https://flakehub.com) account, for accessing private flakes.
     required: false
     default: false
+  force-docker-shim:
+    description: Force the use of Docker as a process supervisor. This setting is automatically enabled when necessary.
+    default: false
   github-token:
     description: A GitHub token for making authenticated requests (which have a higher rate-limit quota than unauthenticated requests)
     default: ${{ github.token }}