diff --git a/src/build.sh b/src/build.sh
index 67801e6..e87e1eb 100644
--- a/src/build.sh
+++ b/src/build.sh
@@ -1,4 +1,10 @@
 #!/usr/bin/env bash
 set -euo pipefail -x
 mkdir -p "$PREFIX"/bin
+
+# envdir
 cp -v "$SRC_DIR"/envdir "$PREFIX"/bin/envdir
+
+# Nextclade v3
+curl -fsSL -o "$PREFIX"/bin/nextclade3 https://github.com/nextstrain/nextclade/releases/download/3.0.0-alpha.1/nextclade-$("$SRC_DIR"/target-triple)
+chmod a+rx "$PREFIX"/bin/nextclade3
diff --git a/src/target-triple b/src/target-triple
new file mode 100755
index 0000000..15f10e0
--- /dev/null
+++ b/src/target-triple
@@ -0,0 +1,23 @@
+#!/bin/bash
+#
+# Get the target triple from uname.
+#
+set -euo pipefail
+
+kernel="$(uname -s)"
+machine="$(uname -m)"
+
+case "$kernel/$machine" in
+    Linux/x86_64)
+        echo "x86_64-unknown-linux-gnu";;
+
+    Darwin/x86_64)
+        echo "x86_64-apple-darwin";;
+
+    Darwin/arm64)
+        echo "aarch64-apple-darwin";;
+
+    *)
+        echo "unsupported kernel/machine: $kernel/$machine" >&2
+        exit 1;;
+esac