const cfg = (
  dirs: (
    bin   : "bin",
    src   : "src",
    lib   : ".lib",
    cache : ".cache",
  ), #:: defaults.dirs
  zig: (
    bin : "zig",
    dir : ".zig",
  ), #:: defaults.zig
  nim: (
    bin : "nim",
    dir : ".nim",
  ), #:: defaults.nim
  nimble: (
    bin : "nimble",
    dir : ".nimble",
  ), #:: defaults.nimble
) #:: defaults

type Dirs  = object
  bin    :PathLike=  cfg.dirs.bin
  src    :PathLike=  cfg.dirs.src
  lib    :PathLike=  cfg.dirs.bin/cfg.dirs.lib
  cache  :PathLike=  cfg.dirs.bin/cfg.dirs.cache

type Config  = object
  dirs :config.Dirs= config.Dirs.default()

type BuildTarget = object
  cfg    :Config
# Bad idea, but sure. here is the wall 😦