Statically linked musl executables

[domenkozar]

Try using https://github.com/nh2/static-haskell-nix to distribute small standalone executables.

# nix-store -q --graph /nix/store/glsk6wx7q8fdwmlw8d2sj42zhxx5c84x-haskell-ide-engine-0.2.0.0|grep haskell
"/nix/store/glsk6wx7q8fdwmlw8d2sj42zhxx5c84x-haskell-ide-engine-0.2.0.0" [label = "haskell-ide-engine-0.2.0.0", shape = box, style = filled, fillcolor = "#ff0000"];
"/nix/store/5fypaay3g4lzbd70qc30d3v2zbzsjkrb-hlint-2.1.5-data" -> "/nix/store/glsk6wx7q8fdwmlw8d2sj42zhxx5c84x-haskell-ide-engine-0.2.0.0" [color = "black"];
"/nix/store/5xsmsf1fk6r6zm18zahfr4nw5s1xqkz5-ekg-0.4.0.15-data" -> "/nix/store/glsk6wx7q8fdwmlw8d2sj42zhxx5c84x-haskell-ide-engine-0.2.0.0" [color = "red"];
"/nix/store/83lrbvbmxrgv7iz49mgd42yvhi473xp6-glibc-2.27" -> "/nix/store/glsk6wx7q8fdwmlw8d2sj42zhxx5c84x-haskell-ide-engine-0.2.0.0" [color = "green"];
"/nix/store/avkqv7f97lxv15ic5rh7fwm3i30n0r8m-ghc-8.4.3" -> "/nix/store/glsk6wx7q8fdwmlw8d2sj42zhxx5c84x-haskell-ide-engine-0.2.0.0" [color = "blue"];
"/nix/store/hhzvw77vrmn5f506kfyb1yh1sdinkbwf-gmp-6.1.2" -> "/nix/store/glsk6wx7q8fdwmlw8d2sj42zhxx5c84x-haskell-ide-engine-0.2.0.0" [color = "magenta"];
"/nix/store/l8hqkjgfrbmmlrcqm85x8ms4fn737ga0-cabal-helper-0.8.0.3" -> "/nix/store/glsk6wx7q8fdwmlw8d2sj42zhxx5c84x-haskell-ide-engine-0.2.0.0" [color = "burlywood"];
"/nix/store/q8rg4mca5zqv98arpxd7164pqa72hf1n-ncurses-6.1" -> "/nix/store/glsk6wx7q8fdwmlw8d2sj42zhxx5c84x-haskell-ide-engine-0.2.0.0" [color = "black"];
"/nix/store/yyv98fx38riz5q2sfhfsqbn6c9byri9y-zlib-1.2.11" -> "/nix/store/glsk6wx7q8fdwmlw8d2sj42zhxx5c84x-haskell-ide-engine-0.2.0.0" [color = "red"];