Attempt to build gospel config

.forgejo/workflows/demo.yaml

@@ -4,7 +4,7 @@ on: [push]
 
 jobs:
   Explore-Forgejo-Actions:
-    runs-on: ubuntu-latest
+    runs-on: nix-builder
     steps:
       - run: echo "🎉 The job was automatically triggered by a ${{ forgejo.event_name }} event."
       - run: echo "🐧 This job is now running on a ${{ runner.os }} server hosted by Forgejo!"
@@ -16,4 +16,5 @@ jobs:
       - name: List files in the repository
         run: |
           ls ${{ forgejo.workspace }}
+      - run: nix build .#nixosConfigurations.gospel.config.system.build.toplevel
       - run: echo "🍏 This job's status is ${{ job.status }}."

homes/x86_64-linux/alejandro@git/default.nix

@@ -12,6 +12,5 @@
   nix.gc = {
     automatic = true;
     options = "-d";
-    frequency = "03:15";
   };
 }

systems/x86_64-linux/gospel/default.nix

@@ -88,6 +88,8 @@
         url = "https://git.alejandr0angul0.dev";
         tokenFile = config.age.secrets.gitea-runner-gospel.path;
         labels = [
+          "nix-builder:host"
+
           "ubuntu-latest:docker://node:16-bullseye"
           "ubuntu-22.04:docker://node:16-bullseye"
           "ubuntu-20.04:docker://node:16-bullseye"
@@ -96,6 +98,15 @@
       };
     };
   };
+  # Allow the Forgejo Actions runner user to talk to nix-daemon when
+  # running jobs directly on the host.
+  nix.settings.trusted-users = [
+    config.systemd.services."gitea-runner-gospel".serviceConfig.User
+  ];
+  nix.settings.allowed-users = [
+    config.systemd.services."gitea-runner-gospel".serviceConfig.User
+  ];
+
   virtualisation = {
     libvirtd.enable = true;