Zettlekasten with git and https://github.com/foambubble/foam - if I'm mobile I use WorkingCopy to paste links into an inbox file that I organize later.
IMO Zig right now is fairly buggy. And the rate of bug introduction has been greater than the fixing of said bugs over the past few years. (Not a knock on the project.) Move fast and break things. Trying to develop production quality software in Zig is like trying to hit a moving target. Zig is not production ready, and they mean it. The ABI is not stable and features are removed/retooled from version to version. (eg. removal of async.) This is all stated upfront, however. Zig is a WIP. That being said, if you've read the warning labels and are still excited there's /tons/ of promise. They are on the right track to being a modern C replacement/augment/mux with an integrated build system. And it's a joy to program in. And the community is pretty great. The best way forward is joining the community and contributing in one way or another, because Zig will be quite special once it's done. Bun is a clear indication of this.
I have fond memories of learning Pike and Roxen as a kid by perusing the Stellar Crisis source code (released, 1993!) I think there's still some servers around today. https://strategywiki.org/wiki/Stellar_Crisis
The NanoPi R4S has a RTL8169 controller with MSI-X capabilities. Post irqbalance setup I verified it's properly distributing IRQs. I'm using mine as a transparent bridge and network monitor. https://news.ycombinator.com/item?id=27236081