diff --git a/.github/copilot-instructions.md b/.github/copilot-instructions.md
index bf9ab16..6b750ca 100644
--- a/.github/copilot-instructions.md
+++ b/.github/copilot-instructions.md
@@ -51,19 +51,19 @@ Hosts enable services declaratively: `custom.web-services.forgejo = { enable = t
 
 ## Developer Workflows
 
-| Task                          | Command                                    |
-| ----------------------------- | ------------------------------------------ |
-| Rebuild & switch locally      | `just switch`                              |
-| Test config without switching | `just test`                                |
-| Deploy to remote host(s)      | `just deploy hostname1 hostname2`          |
-| Format all files              | `just fmt` or `nix fmt`                    |
-| Run flake checks + tests      | `just check`                               |
-| Check without building        | `just check-lite`                          |
-| Update flake inputs           | `just update`                              |
-| Edit SOPS secrets             | `just sops-edit hosts/<host>/secrets.json` |
-| Rotate all secrets            | `just sops-rotate-all`                     |
-| Install a new host            | `just install <host> root@<ip>`            |
-| Open nix repl for a host      | `just repl <hostname>`                     |
+| Task | Command |
+|---|---|
+| Rebuild & switch locally | `just switch` |
+| Test config without switching | `just test` |
+| Deploy to remote host(s) | `just deploy hostname1 hostname2` |
+| Format all files | `just fmt` or `nix fmt` |
+| Run flake checks + tests | `just check` |
+| Check without building | `just check-lite` |
+| Update flake inputs | `just update` |
+| Edit SOPS secrets | `just sops-edit hosts/<host>/secrets.json` |
+| Rotate all secrets | `just sops-rotate-all` |
+| Install a new host | `just install <host> root@<ip>` |
+| Open nix repl for a host | `just repl <hostname>` |
 
 SOPS commands auto-enter a `nix develop .#sops` shell if `sops` isn't available, which handles Bitwarden login and age key retrieval.
 
diff --git a/flake-parts/checks.nix b/flake-parts/checks.nix
deleted file mode 100644
index 980b2f6..0000000
--- a/flake-parts/checks.nix
+++ /dev/null
@@ -1,20 +0,0 @@
-{ inputs, self, ... }:
-{
-  perSystem =
-    { inputs', pkgs, ... }:
-    {
-      checks = {
-        formatting = (inputs.treefmt.lib.evalModule pkgs "${self}/treefmt.nix").config.build.check self;
-
-        statix = pkgs.runCommand "statix" { buildInputs = [ inputs'.statix.packages.statix ]; } ''
-          statix check ${self}
-          touch $out
-        '';
-
-        deadnix = pkgs.runCommand "deadnix" { buildInputs = [ pkgs.deadnix ]; } ''
-          deadnix --fail ${self}
-          touch $out
-        '';
-      };
-    };
-}
diff --git a/flake-parts/formatter.nix b/flake-parts/formatter.nix
index e8ac02a..c2350b8 100644
--- a/flake-parts/formatter.nix
+++ b/flake-parts/formatter.nix
@@ -1,8 +1,16 @@
-{ inputs, self, ... }:
+{ inputs, ... }:
 {
   perSystem =
     { pkgs, ... }:
     {
-      formatter = (inputs.treefmt.lib.evalModule pkgs "${self}/treefmt.nix").config.build.wrapper;
+      formatter =
+        (inputs.treefmt.lib.evalModule pkgs {
+          projectRootFile = "flake.nix";
+          programs = {
+            nixfmt.enable = true;
+            prettier.enable = true;
+            just.enable = true;
+          };
+        }).config.build.wrapper;
     };
 }
diff --git a/flake.lock b/flake.lock
index a0ddfe5..35f1b99 100644
--- a/flake.lock
+++ b/flake.lock
@@ -114,27 +114,6 @@
         "type": "github"
       }
     },
-    "flake-parts_2": {
-      "inputs": {
-        "nixpkgs-lib": [
-          "statix",
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1754487366,
-        "narHash": "sha256-pHYj8gUBapuUzKV/kN/tR3Zvqc7o6gdFB9XKXIp1SQ8=",
-        "owner": "hercules-ci",
-        "repo": "flake-parts",
-        "rev": "af66ad14b28a127c5c0f3bbb298218fc63528a18",
-        "type": "github"
-      },
-      "original": {
-        "owner": "hercules-ci",
-        "repo": "flake-parts",
-        "type": "github"
-      }
-    },
     "home-manager": {
       "inputs": {
         "nixpkgs": [
@@ -305,7 +284,6 @@
         "nixpkgs-unstable": "nixpkgs-unstable",
         "radicale-birthday-calendar": "radicale-birthday-calendar",
         "sops": "sops",
-        "statix": "statix",
         "treefmt": "treefmt",
         "vscode-extensions": "vscode-extensions"
       }
@@ -330,44 +308,6 @@
         "type": "github"
       }
     },
-    "statix": {
-      "inputs": {
-        "flake-parts": "flake-parts_2",
-        "nixpkgs": [
-          "nixpkgs"
-        ],
-        "systems": "systems"
-      },
-      "locked": {
-        "lastModified": 1760596293,
-        "narHash": "sha256-duH6Il124g+CdYX+HCqOGnpJxyxOCgWYcrcK0CBnA2M=",
-        "owner": "oppiliappan",
-        "repo": "statix",
-        "rev": "e9df54ce918457f151d2e71993edeca1a7af0132",
-        "type": "github"
-      },
-      "original": {
-        "owner": "oppiliappan",
-        "repo": "statix",
-        "type": "github"
-      }
-    },
-    "systems": {
-      "flake": false,
-      "locked": {
-        "lastModified": 1681028828,
-        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
-        "owner": "nix-systems",
-        "repo": "default",
-        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-systems",
-        "repo": "default",
-        "type": "github"
-      }
-    },
     "treefmt": {
       "inputs": {
         "nixpkgs": [
diff --git a/flake.nix b/flake.nix
index 3667723..3233b49 100644
--- a/flake.nix
+++ b/flake.nix
@@ -35,11 +35,6 @@
       inputs.nixpkgs.follows = "nixpkgs";
     };
 
-    statix = {
-      url = "github:oppiliappan/statix";
-      inputs.nixpkgs.follows = "nixpkgs";
-    };
-
     vscode-extensions = {
       url = "github:nix-community/nix-vscode-extensions";
       inputs.nixpkgs.follows = "nixpkgs";
diff --git a/treefmt.nix b/treefmt.nix
deleted file mode 100644
index d81baf4..0000000
--- a/treefmt.nix
+++ /dev/null
@@ -1,8 +0,0 @@
-{
-  projectRootFile = "flake.nix";
-  programs = {
-    nixfmt.enable = true;
-    prettier.enable = true;
-    just.enable = true;
-  };
-}