Extensible devshell setup

devshells/default.nix

@@ -0,0 +1,4 @@
+args: {
+  visonum = import ./visonum.nix args;
+}
+

devshells/visonum.nix

@@ -0,0 +1,5 @@
+# Shell containing the tools I most commonly use for work
+{ pkgs, inputs }:
+pkgs.mkShell {
+  nativeBuildInputs = with pkgs; [ purescript spago typescript nodejs ];
+}

flake.nix

@@ -78,10 +78,17 @@
 
       # Devshell for bootstrapping
       # Acessible through 'nix develop'
-      devShells = forAllSystems (system:
-        let pkgs = nixpkgs.legacyPackages.${system};
-        in import ./shell.nix { inherit pkgs; }
-      );
+      devShells = forAllSystems
+        (system:
+          let
+            pkgs = nixpkgs.legacyPackages.${system};
+            default = import ./shell.nix { inherit pkgs; };
+            devshells = import ./devshells
+            {
+              inherit pkgs; inherit inputs;
+            };
+          in
+          devshells // { inherit default; });
 
       # Custom packages and modifications, exported as overlays
       overlays = import ./overlays;

shell.nix

@@ -1,9 +1,8 @@
 # Shell for bootstrapping flake-enabled nix and home-manager
 # You can enter it through 'nix develop' or (legacy) 'nix-shell'
-{ pkgs ? (import ./nixpkgs.nix) { } }: {
-  default = pkgs.mkShell {
+{ pkgs ? (import ./nixpkgs.nix) { } }:
+pkgs.mkShell {
   # Enable experimental features without having to specify the argument
   NIX_CONFIG = "experimental-features = nix-command flakes";
   nativeBuildInputs = with pkgs; [ nix home-manager git ];
-  };
 }