chore: reduce nix fetching (#11660)

nix/hashes.json

@@ -1,8 +1,8 @@
 {
   "nodeModules": {
-    "x86_64-linux": "sha256-3wRTDLo5FZoUc2Bwm1aAJZ4dNsekX8XoY6TwTmohgYo=",
+    "x86_64-linux": "sha256-06Otz3loT4vn0578VDxUqVudtzQvV7oM3EIzjZnsejo=",
     "aarch64-linux": "sha256-CKiuc6c52UV9cLEtccYEYS4QN0jYzNJv1fHSayqbHKo=",
-    "aarch64-darwin": "sha256-jGr2udrVeseioMWpIzpjYFfS1CN8GvNFwo6o92Aa5Oc=",
+    "aarch64-darwin": "sha256-x8dgCF0CJBWi2dZLDHMGdlTqys1X755ok0PM6x0HAGo=",
     "x86_64-darwin": "sha256-k5384Uun7tLjKkfJXXPcaZSXQ5jf/tMv21xi5cJU1rM="
   }
 }

nix/node_modules.nix

@@ -46,15 +46,16 @@ stdenvNoCC.mkDerivation {
 
   buildPhase = ''
     runHook preBuild
-    export HOME=$(mktemp -d)
     export BUN_INSTALL_CACHE_DIR=$(mktemp -d)
     bun install \
       --cpu="${bunCpu}" \
       --os="${bunOs}" \
+      --filter '!./' \
+      --filter './packages/opencode' \
+      --filter './packages/desktop' \
       --frozen-lockfile \
       --ignore-scripts \
-      --no-progress \
-      --linker=isolated
+      --no-progress
     bun --bun ${./scripts/canonicalize-node-modules.ts}
     bun --bun ${./scripts/normalize-bun-binaries.ts}
     runHook postBuild