split runners into separate arch types

.forgejo/workflows/build.yaml

@@ -34,43 +34,24 @@ jobs:
       - name: Garbage collect build dependencies
         run: nix-collect-garbage
 
-      - name: Build new ${{ matrix.system }} system
+      - name: Build new ${{ matrix.system }} system and push to cachix
+        id: "build"
         shell: bash
         run: |
           set -o pipefail
-          nix build \
-            ".#top.${{ matrix.system }}" \
-            --profile ./profile \
-            --fallback \
-            -v \
-            --log-format raw \
-             > >(tee stdout.log) 2> >(tee /tmp/nix-build-err.log >&2)
-      - name: Push to Cachix
+          DRVOUT=$(nix build ".#deploy-json.${{ matrix.system }}" --print-out-paths)
+          ::set-output name=build_output::$DRVOUT
+      - name: Push cache for ${{ matrix.system }} to cachix
+        id: "push-to-cachix"
         if: success()
         env:
           CACHIX_AUTH_TOKEN: ${{ secrets.CACHIX_AUTH_TOKEN }}
         run: |
-          nix build .#deploy-json --print-out-paths | cachix push hsndev
-
-  nix-build-success:
-    if: ${{ always() }}
-    needs:
-      - nix-build
-    name: Nix Build Successful
-    runs-on: docker
-    steps:
-      - if: ${{ contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled') }}
-        name: Check matrix status
-        run: exit 1
-  deploy:
+          echo ${{steps.build_push.outputs.build_output}} | cachix push hsndev
+      - name: Deploy ${{ matrix.system }} runners
+        id: "deploy"
         if: success()
-    needs: 
-      - nix-build-success
-    runs-on: docker
         env:
           CACHIX_ACTIVATE_TOKEN: ${{ secrets.CACHIX_ACTIVATE_TOKEN }}
-    steps:
-      - name: Deploy Runners
         run: |
-          spec=$(nix build .#deploy-json --print-out-paths)
-          cachix deploy activate $spec
+          cachix deploy activate ${{ steps.build_push.outputs.build_output }}

flake.nix

@@ -110,7 +110,10 @@
 
       # Constructs a deploy.json output that can be used to deploy the runners
       # https://docs.cachix.org/deploy/reference#deploy-json
+
       deploy-json =
+        {
+          "aarch64-linux" =
             let
               inherit (common "aarch64-linux") cachix-deploy-lib;
             in
@@ -125,6 +128,15 @@
                       # system = "aarch64-linux";
                       imports = aarch64-linux-modules;
                     };
+                };
+              };
+          "x86_64-linux" =
+            let
+              inherit (common "x86_64-linux") cachix-deploy-lib;
+            in
+            cachix-deploy-lib.spec
+              {
+                agents = {
                   "fj-shadowfax-01" =
                     let
                       inherit (common "x86_64-linux") cachix-deploy-lib pkgs;
@@ -134,6 +146,8 @@
                     };
                 };
               };
+        };
+
       # Convenience output that aggregates the outputs for home, nixos.
       # Also used in ci to build targets generally.
       top =