diff --git a/.github/workflows/nix-flake.yml b/.github/workflows/nix-flake.yml
index 023bf87..38eb173 100644
--- a/.github/workflows/nix-flake.yml
+++ b/.github/workflows/nix-flake.yml
@@ -9,26 +9,15 @@ on:
   workflow_dispatch:
 
 jobs:
-  nix-matrix:
-    runs-on: ubuntu-latest
-    outputs:
-      matrix: ${{ steps.set-matrix.outputs.matrix }}
+  check:
+    runs-on: ubuntu-22.04
+    permissions:
+      id-token: "write"
+      contents: "read"
     steps:
-      - uses: actions/checkout@v4
-      - uses: cachix/install-nix-action@v24
-      - id: set-matrix
-        name: Generate Nix Matrix
-        run: |
-          set -Eeu
-          matrix="$(nix eval --json '.#githubActions.matrix')"
-          echo "matrix=$matrix" >> "$GITHUB_OUTPUT"
-
-  nix-build:
-    needs: nix-matrix
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix: ${{fromJSON(needs.nix-matrix.outputs.matrix)}}
-    steps:
-      - uses: actions/checkout@v4
-      - uses: cachix/install-nix-action@v24
-      - run: nix build -L ".#${{ matrix.attr }}"
+      - uses: actions/checkout@v3
+      - uses: DeterminateSystems/nix-installer-action@main
+      - uses: DeterminateSystems/magic-nix-cache-action@main
+      - uses: DeterminateSystems/flake-checker-action@main
+      - name: Run `nix build`
+        run: nix build .
\ No newline at end of file
diff --git a/flake.nix b/flake.nix
index 36d40c2..bddcb3f 100644
--- a/flake.nix
+++ b/flake.nix
@@ -3,28 +3,19 @@
     nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
 
     flake-parts.url = "github:hercules-ci/flake-parts";
-    flake-parts.inputs.nixpkgs.follows = "nixpkgs";
-
     systems.url = "github:nix-systems/default";
-    systems.inputs.nixpkgs.follows = "nixpkgs";
-
-    nix-github-actions.url = "github:nix-community/nix-github-actions";
-    nix-github-actions.inputs.nixpkgs.follows = "nixpkgs";
 
     # Dev tools
     treefmt-nix.url = "github:numtide/treefmt-nix";
     treefmt-nix.inputs.nixpkgs.follows = "nixpkgs";
   };
 
-  outputs = inputs:
+  outputs = inputs@{ flake-parts, ... }:
     inputs.flake-parts.lib.mkFlake { inherit inputs; } {
       systems = import inputs.systems;
       imports = [
         inputs.treefmt-nix.flakeModule
       ];
-      flake = { config, self', inputs', ... }: {
-        githubActions = inputs.nix-github-actions.lib.mkGithubMatrix { checks = self'.packages; };
-      };
       perSystem = { config, self', pkgs, lib, system, ... }:
         let
           cargoToml = builtins.fromTOML (builtins.readFile ./Cargo.toml);
@@ -36,8 +27,12 @@
             name = "rust-toolchain";
             paths = [ pkgs.rustc pkgs.cargo pkgs.cargo-watch pkgs.rust-analyzer pkgs.rustPlatform.rustcSrc ];
           };
+          checks = {
+            x86_64-linux.default = config.packages.default;
+          };
         in
         {
+          githubActions = inputs.nix-github-actions.lib.mkGithubMatrix { inherit checks; };
           # Rust package
           packages.default = pkgs.rustPlatform.buildRustPackage {
             inherit (cargoToml.package) name version;