Hot-reloading works but is still rough as it's not even 6 months old. You can probably already try building a REPL on top, but just make sure to not stay alone if you hit a bug, join the IRC/Gitter/Discord/Matrix.
Alternatively for REPL you have * `nim secret`, unsupported secret command line option to get a limited REPL (it doesn't support anything that requires a C library) * `INim` \- [https://github.com/AndreiRegiani/INim](https://github.com/AndreiRegiani/INim), which works with plain raw Nim.
