For me, I really want to get into niri, but the lack of XWayland support scares me (I know there’s solutions, but I don’t understand them yet).
Also, I stopped using Emacs (even though I love its design and philosophy with my whole heart) because it’s very slow, even as a daemon.
Lapce, an IDE written in Rust. It’s nice and light compared to most IDE’s, so I use it a bit on my aging laptop from 2015. However, it doesn’t have the extension ecosystem or polish of my favored IDE, VS Code.
Have you tried zed? Written in rust, has many extensions. I gave it a try, I quite like it. It’s blazing fast. But I haven’t tried on an old machine.
I haven’t, but I have heard of it. I think parts of Lapce are based on some Zed algorithms.