New code (non-flake import), infinite recursion

[keithy]

Attempting to use the non-flake import on the typescript branch fails.

building '/nix/store/q13rlagpl9d65wgrjccpydf7dg0f6v8m-nixt-0.1.0.drv'...
building
Hint: used config file '/nix/store/6f0inr5ikfha63lxmcqn53wq3cj8gh0q-x86_64-unknown-linux-gnu-nim-wrapper-1.6.4/etc/nim/nim.cfg' [Conf]
Hint: used config file '/nix/store/6f0inr5ikfha63lxmcqn53wq3cj8gh0q-x86_64-unknown-linux-gnu-nim-wrapper-1.6.4/etc/nim/config.nims' [Conf]
...................................................................................................................
/nix/store/f5bnxczqawd26z1446diw20frarsffjz-nim/nix.nim:9:15 Warning: inherit from a more precise exception type like ValueError, IOError or OSError. If these don't suit, inherit from CatchableError or Defect. [InheritFromException]
/nix/store/f5bnxczqawd26z1446diw20frarsffjz-nim/nix.nim:27:3 Error: expression expected, but found 'keyword let'
error: builder for '/nix/store/q13rlagpl9d65wgrjccpydf7dg0f6v8m-nixt-0.1.0.drv' failed with exit code 1
error: 1 dependencies of derivation '/nix/store/n2krbilz3lkj5fnq1rmwhbk043pgcfxb-system-path.drv' failed to build
error: 1 dependencies of derivation '/nix/store/zxdxp2b93b7vp1igp7vdq3zwrskhrmxj-nixos-system-mini-one-22.05pre360796.73ad5f9e147.drv' failed to build