yeah sure, I have zero user and well, it may be like that until my death :-)

that project was an excuse for learning rust. But now I understant rust a bit more, well, I'm a bit scare to wait 45 sec on each build for a side project (ie a project I do on my very limited spare time) :-)

but anyway, rust is really cool to work with (I have a python/C++/assembler/R background). The level of checking it does is really mindblowing (and frustrating at times :-))

Try to debug where your compile times are going[1][2], but if you want a good rule of thumb: separate your crate into multiple if you can (that way incremental compilation will yield better results), switch to an alternative linker, like mold or lld, and use trait objects instead of generics (monomorphization can be expensive during compilation, while trait objects can be slower at runtime, but not enough to be worth it worrying about it).

[1]: https://fasterthanli.me/articles/why-is-my-rust-build-so-slo...

[2]: https://matklad.github.io/2021/09/04/fast-rust-builds.html

Thanks to some hints in those articles (basically, enabling incremental builds on release mode), I've been able to remove about 70% (yes!) of the build time :-)

Thanks!