feat: nixos module

flake.nix

@@ -14,17 +14,18 @@
         "x86_64-linux"
       ];
 
+      overlays = [
+        inputs.sydpkgs.overlays.default
+        clj-nix.overlays.default
+        self.overlays.default
+      ];
+
       each-system = f: nixpkgs.lib.genAttrs supportedSystems (system: f rec {
         pkgs = import nixpkgs {
           inherit system;
-          overlays = [
-            inputs.sydpkgs.overlays.default
-            clj-nix.overlays.default
-            self.overlays.default
-          ];
         };
         inherit (pkgs) lib;
-        inherit system;
+        inherit system overlays;
       });
     in {
       # Exposed as a REPL convenience.
@@ -36,13 +37,17 @@
       });
 
       overlays.default = final: prev:
-        let graal = x: final.mkGraalBin { cljDrv = x; };
+        let
+          # is this really the correct way to satisfy our
+          # dependencies? lmfao
+          final' = final.appendOverlays overlays;
+          graal = x: final'.mkGraalBin { cljDrv = x; };
         in {
-          ibm-plex-web = final.callPackage ./ibm-plex-web.nix {};
-          doerg = final.callPackage ./. {};
-          doerg-parser = final.callPackage ./doerg-parser {};
-          doerg-temml-worker = final.callPackage ./doerg-temml-worker {};
-          our-tex = final.callPackage ./our-tex.nix {};
+          ibm-plex-web = final'.callPackage ./ibm-plex-web.nix {};
+          doerg = final'.callPackage ./. {};
+          doerg-parser = final'.callPackage ./doerg-parser {};
+          doerg-temml-worker = final'.callPackage ./doerg-temml-worker {};
+          our-tex = final'.callPackage ./our-tex.nix {};
         };
 
       checks = each-system ({ pkgs, system, ... }: {
@@ -52,6 +57,8 @@
             (pkgs.lib.attrValues self.packages.${system});
       });
 
+      nixosModules.default = import ./module.nix { inherit self; };
+
       devShells = each-system ({ pkgs, system, ... }: {
         default = pkgs.mkShell {
           inputsFrom = [