make dev/install to add a dev install

Makefile

@@ -3,6 +3,14 @@ init:
 	git submodule update --init --recursive
 .PHONY: init
 
+# Slightly cursed way that we setup a dev version of this locally on NixOS.
+dev/install:
+	zig build -Dcpu=baseline
+	patchelf --set-rpath "${LD_LIBRARY_PATH}" zig-out/bin/ghostty
+	mkdir -p ${HOME}/bin
+	cp zig-out/bin/ghostty ${HOME}/bin/devtty
+.PHONY: dev/install
+
 # glad updates the GLAD loader. To use this, place the generated glad.zip
 # in this directory next to the Makefile, remove vendor/glad and run this target.
 #

nix/devshell.nix

@@ -22,7 +22,18 @@
 , libXi
 , libXinerama
 , libXrandr
-}: mkShell rec {
+}:
+let
+  # See package.nix. Keep in sync.
+  rpathLibs = [
+    libGL
+  ] ++ lib.optionals stdenv.isLinux [
+    libX11
+    libXcursor
+    libXi
+    libXrandr
+  ];
+in mkShell rec {
   name = "ghostty";
 
   nativeBuildInputs = [
@@ -50,5 +61,7 @@
     libXrandr
   ];
 
-  LD_LIBRARY_PATH = "${libX11}/lib:${libGL}/lib";
+  # This should be set onto the rpath of the ghostty binary if you want
+  # it to be "portable" across the system.
+  LD_LIBRARY_PATH = lib.makeLibraryPath rpathLibs;
 }

nix/package.nix

@@ -1,3 +1,5 @@
+# TODO(mitchellh): This currenly doesn't fully work. It generates a binary
+# that smashes the stack on run. I'm not sure why.
 { stdenv
 , lib
 , libGL