diff --git a/.forgejo/workflows/ci.ncl b/.forgejo/workflows/ci.ncl
new file mode 100644
index 0000000..a73b0aa
--- /dev/null
+++ b/.forgejo/workflows/ci.ncl
@@ -0,0 +1,48 @@
+{
+  on = {
+    push.branches = ["main"],
+    pull_request.types = ["opened", "synchronize", "reopened"],
+  },
+
+  jobs =
+    std.record.from_array
+      (
+        std.array.flatten
+          [
+            (
+              std.array.map
+                (
+                  fun c =>
+                    {
+                      field = "nixosConfiguration-%{c}",
+                      value = {
+                        runs-on = "native",
+                        steps = [
+                          { uses = "actions/checkout@v4" },
+                          { run = "nix build .#nixosConfigurations.%{c}.config.system.build.toplevel" },
+                        ]
+                      }
+                    }
+                )
+                ["all", "mastodon", "peertube", "pixelfed"]
+            ),
+            (
+              std.array.map
+                (
+                  fun c =>
+                    {
+                      field = "check-%{c}",
+                      value = {
+                        runs-on = "native",
+                        steps = [
+                          { uses = "actions/checkout@v4" },
+                          { run = "nix build .#checks.x86_64-linux.%{c} -L" },
+                        ]
+                      }
+                    }
+                )
+                ["mastodon-garage", "pixelfed-garage"]
+            )
+          ]
+      ),
+}
diff --git a/.forgejo/workflows/ci.yaml b/.forgejo/workflows/ci.yaml
new file mode 100644
index 0000000..89f7bcf
--- /dev/null
+++ b/.forgejo/workflows/ci.yaml
@@ -0,0 +1,41 @@
+## This file was generated by Nickel. Edit `ci.ncl` instead, and export to YAML.
+jobs:
+  check-mastodon-garage:
+    runs-on: native
+    steps:
+    - uses: actions/checkout@v4
+    - run: nix build .#checks.x86_64-linux.mastodon-garage -L
+  check-pixelfed-garage:
+    runs-on: native
+    steps:
+    - uses: actions/checkout@v4
+    - run: nix build .#checks.x86_64-linux.pixelfed-garage -L
+  nixosConfiguration-all:
+    runs-on: native
+    steps:
+    - uses: actions/checkout@v4
+    - run: nix build .#nixosConfigurations.all.config.system.build.toplevel
+  nixosConfiguration-mastodon:
+    runs-on: native
+    steps:
+    - uses: actions/checkout@v4
+    - run: nix build .#nixosConfigurations.mastodon.config.system.build.toplevel
+  nixosConfiguration-peertube:
+    runs-on: native
+    steps:
+    - uses: actions/checkout@v4
+    - run: nix build .#nixosConfigurations.peertube.config.system.build.toplevel
+  nixosConfiguration-pixelfed:
+    runs-on: native
+    steps:
+    - uses: actions/checkout@v4
+    - run: nix build .#nixosConfigurations.pixelfed.config.system.build.toplevel
+on:
+  pull_request:
+    types:
+    - opened
+    - synchronize
+    - reopened
+  push:
+    branches:
+    - main