CodePerfect was an experiment to build a faster IDE. It eschews the modern tech stack and is instead written from scratch in C/C++/OpenGL like a video game.
It starts instantly, runs at 144 FPS, has near-zero latency, and comes with native, full-featured code intelligence and integrated debugging with Delve. See more of the features here.
It's no longer actively developed, but is now open source and available for free.
Currently it only supports MacOS and there are no plans to port it to Windows or Linux.
SKIP_UPLOAD=1 it tries to upload to the S3 bucket, which only I have