Abandon flakes in favour of npins

Flakes copy the whole gigantic repo to store all the time, quickly eating all the drive capacity.

shell.nix

@@ -1,14 +1,18 @@
-# SPDX-FileCopyrightText: 2022 Jan Tojnar
+# SPDX-FileCopyrightText: 2024 Jan Tojnar
 # SPDX-License-Identifier: MIT
+{
+  dev ? false,
+}:
 
 let
-  lock = builtins.fromJSON (builtins.readFile ./flake.lock);
-  flake-compat = builtins.fetchTarball {
-    url = "https://github.com/edolstra/flake-compat/archive/${lock.nodes.flake-compat.locked.rev}.tar.gz";
-    sha256 = lock.nodes.flake-compat.locked.narHash;
-  };
-  flake = import flake-compat {
-    src =  ./.;
-  };
+  sources = import ./npins;
+  pkgs = import sources.nixpkgs { };
+  inherit (pkgs) lib;
+  site = import ./.;
 in
-flake.shellNix
+pkgs.mkShell {
+  nativeBuildInputs = [
+    site
+    pkgs.vips
+  ] ++ lib.optionals dev [ pkgs.cabal-install ];
+}