Use the nimscript config: just create a file `<name of source file>.nims` or
`config.nims` in your project directory and put flags inside:
switch("threads", "off")
switch("mm", "arc")
Run
this also works:
--threads:off
--mm:arc
Run
Nim should pick up all adjacent configs automatically when you compile your
program.
Nimscript docs:
* <https://nim-lang.github.io/Nim/nims.html>
* <https://nim-lang.github.io/Nim/nimscript.html>
