Built from scratch, based on 20 years of experience developing IDEs. Fleet uses the IntelliJ code-processing engine, with a distributed IDE architecture and a reimagined UI.
I haven’t looked but I don’t think there’s that much custom code in Doom Emacs for example… it’s mostly something that sets sane defaults and glue over disjointed points… most of my slowdowns have come from different kinds of parsers etc and native-comp compiles all the packages which speeds up load / execution times.
Have you tried running Doom on nativecomp-enabled Emacs? It’s even speedier =)
I think what slows Emacs distributions down the most is custom Elisp code. Do those parts benefit from native compilation at all?
I haven’t looked but I don’t think there’s that much custom code in Doom Emacs for example… it’s mostly something that sets sane defaults and glue over disjointed points… most of my slowdowns have come from different kinds of parsers etc and native-comp compiles all the packages which speeds up load / execution times.