SingleThread

Add dev outputs for build dependencies and shell.nix

Fix Nix package name: noto-fonts-emoji → noto-fonts-color-emoji

Fix Nix package names: use xorg.libxcb, drop xcb-util-errors

Fix json-c package name: hyphen is subtraction in Nix, use json_c

Fix Nix package names: xkbcommon → libxkbcommon, json_c → json-c