Congrats on the launch. I've actually been going in a totally separate direction lately, it helps with my focus and ADHD tendencies to jump around and get overwhelmed.

1. One window. 2. Minimal everything. 3. Most importantly, no tree navigation.

If I need to jump to a file, I either use recents menu in Intellij or use file markers to jump to it, means I have to remember the filemarker and have intent to go there (I'm using IdeaVim plugin for vim hotkeys). This, to me, make programming much more focused and pleasurable. This is part of my evolution from multi screen to widesreen and then back to a single screen.

For large and mature codebases like you mention, I just use LLM to guide me around.