diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index f14384262..a160837da 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -15,32 +15,20 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v2
 
-      - uses: abelfodil/protoc-action@v1
+      - name: Install nix
+        uses: cachix/install-nix-action@v15
         with:
-          protoc-version: '21.5'
+          extra_nix_config: |
+            access-tokens = github=${{ github.token }}
 
-      # Taken from: https://github.com/actions/cache/blob/main/examples.md#rust---cargo
-      - uses: actions/cache@v3
+      - name: configure cachix
+        uses: cachix/cachix-action@v10
         with:
-          path: |
-            ~/.cargo/bin/
-            ~/.cargo/registry/index/
-            ~/.cargo/registry/cache/
-            ~/.cargo/git/db/
-            target/
-          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
-
-      - name: Configure toolchain
-        uses: dtolnay/rust-toolchain@stable
-
-      - name: Unit tests
-        run: cargo test
-
-      - name: Clippy
-        uses: actions-rs/clippy-check@v1
-        with:
-          token: ${{ secrets.GITHUB_TOKEN }}
-          args: --all-features -- -D warnings
+          name: glaredb
+          authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
+
+      - name: run checks
+        run: nix flake check
 
       - name: SQL Logic Tests
-        run: cargo run --bin slt_runner -- testdata/sqllogictests/*.slt
+        run: nix run .#slt_runner testdata/sqllogictests/*.slt
diff --git a/.github/workflows/image.yaml b/.github/workflows/image.yaml
index 29677007e..193507af2 100644
--- a/.github/workflows/image.yaml
+++ b/.github/workflows/image.yaml
@@ -28,6 +28,12 @@ jobs:
           extra_nix_config: |
             access-tokens = github=${{ github.token }}
 
+      - name: configure cachix
+        uses: cachix/cachix-action@v10
+        with:
+          name: glaredb
+          authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
+
       - name: Authenticate to Google Cloud
         uses: google-github-actions/auth@v0
         with:
diff --git a/flake-parts/apps/default.nix b/flake-parts/apps/default.nix
index 4710fcfdb..6ac4ae628 100644
--- a/flake-parts/apps/default.nix
+++ b/flake-parts/apps/default.nix
@@ -12,7 +12,11 @@
     apps = {
       cli = {
         type = "app";
-        program = "${self.packages.${system}.cli}/bin/main";
+        program = "${self.packages.${system}.cli}/bin/glaredb";
+      };
+      slt_runner = {
+        type = "app";
+        program = "${self.packages.${system}.slt_runner}/bin/slt_runner";
       };
       default = apps.cli;
     };
diff --git a/flake-parts/devshell/default.nix b/flake-parts/devshell/default.nix
index 65fb675f2..90defce8f 100644
--- a/flake-parts/devshell/default.nix
+++ b/flake-parts/devshell/default.nix
@@ -17,10 +17,10 @@
       rustfmt
       bacon
       cargo-udeps
+      cargo-nextest
       cocogitto
       protobuf
       gdb
-      miniserve
     ];
 
     otherNativeBuildInputs = with pkgs; [pkgconfig openssl openssl.dev llvmPackages.bintools];
diff --git a/flake-parts/packages/default.nix b/flake-parts/packages/default.nix
index e8602045a..2d86c1b99 100644
--- a/flake-parts/packages/default.nix
+++ b/flake-parts/packages/default.nix
@@ -18,16 +18,21 @@
       inputs'.fenix.packages.stable.toolchain;
 
     common-build-args = rec {
+      # crane arguments
       src = lib.cleanSourceWith {
         src = ../..;
         filter = self.lib.filterSrc craneLib;
       };
+      pname = "glaredb";
 
+      # application config arguments
       buildInputs = otherBuildInputs;
       nativeBuildInputs = otherNativeBuildInputs;
+      # clang
       LD_LIBRARY_PATH = pkgs.lib.makeLibraryPath buildInputs;
       BINDGEN_EXTRA_CLANG_ARGS = "-isystem ${pkgs.llvmPackages.libclang.lib}/lib/clang/${lib.getVersion pkgs.clang}/include";
       LIBCLANG_PATH = "${pkgs.llvmPackages.libclang.lib}/lib";
+      # protobuf compilation
       PROTOC = "${pkgs.protobuf}/bin/protoc";
       PROTOC_INCLUDE = "${pkgs.protobuf}/include";
     };
@@ -40,15 +45,20 @@
       cargoClippyExtraArgs = "--all-features -- --deny warnings";
     } // common-build-args);
 
+    tests-check = craneLib.cargoNextest ({
+      inherit cargoArtifacts;
+      partitions = 1;
+      partitionType = "count";
+    } // common-build-args);
   in rec {
     checks = {
-      inherit clippy-check;
+      inherit clippy-check tests-check;
       build-crate = packages.default;
+      build-sltrunner = packages.slt_runner;
     };
     packages = {
       default = packages.cli;
 
-      # cli = craneLib.cargoBuild ({
       cli = craneLib.buildPackage ({
         pname = "glaredb-cli";
         inherit cargoArtifacts;
@@ -61,6 +71,12 @@
         created = "now";
         config.Cmd = ["${packages.cli}/bin/glaredb"];
       };
+
+      slt_runner = craneLib.buildPackage ({
+        pname = "glaredb-slt-runner";
+        inherit cargoArtifacts;
+        cargoExtraArgs = "--bin slt_runner";
+      } // common-build-args);
     };
   };
 }