nix flake

[mahmoodsh36]

i managed to get webview working on nixos but im not very familiar with nix so perhaps someone else should take a look.
for those who simply want to run the webview client on nix you may try nix run github:mahmoodsh36/lem#lem-webview
i built it on top of the older flake. i removed the sdl2 client to make it easier for myself initially but it can probably be added back with no trouble. it was mostly a sequence of trial&error before i got the flake fully working.
the code is at https://github.com/mahmoodsh36/lem which also includes the dependencies for the organ-mode that im working on.
i think there is still sometimes an issue where lem/sbcl are trying to write fasl files to the nix store and it results in errors, this was the main hurdle for getting the flake to work, i think what i have is a workaround/hack and im not sure its the "correct" way. plus i'd love to get this working with quicklisp without having to do things manually (so that quicklisp and lem-extension-manager can work ootb).