merge enby environment with RENA

.gitignore

@@ -1 +1,11 @@
-sandbox/
+deps/*
+!deps/Makefile
+
+bin/
+
+# clang
+.cache
+compile_commands.json
+
+# valgrind
+vgcore.*

flake.nix

@@ -1,5 +1,5 @@
 {
-  description = "devshell-dorne";
+  description = "devshell-enby";
 
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.05";
@@ -22,7 +22,9 @@
     };
 
     devShells = forAllSystems (
-      system: pkgs: {
+      system: pkgs: let
+        lib = pkgs.lib;
+      in {
         default = pkgs.mkShell {
           packages = with pkgs; [
             gnumake
@@ -43,8 +45,23 @@
               ])
             # .NET Development Tooling
             ilspycmd
+
+            # Dear ImGui
+            freetype.dev
+            # SDL3+OpenGL3 backend (OPTIONAL)
+            # TODO: remove these and only install if necessary
+            glfw3
+            glm
+            sdl3
+            sdl3-image
+            sdl3-ttf
           ];
 
+          env = {
+            #SDL_CONFIG = "${SDL2.dev}/bin/sdl2-config";
+            PATH = lib.makeBinPath [pkgs.sdl3.dev];
+          };
+
           shell = "${pkgs.bash}/bin/bash";
 
           # so I can easily read the glibc header files