I'm in a bit of a productivity rut and whilst I suspect the issue is mainly between the keyboard and chair I'm also interested in what (FOSS) tools there are that people find effective.
One of my issues at the moment is cross managing different workstreams particularly with personal projects which are more in the "if I have time category".
I'm interested in anything that helps manage time or limit distractions or anything that makes it easier to keep track of progress/next steps for project when there may be a bit of a time gap between.
I worry I'm not "hardcore" enough for emacs (I have tried in the past and now mostly use Vim). I will give it a try though as quite a few people recommend here!
It takes a little bit of getting used to, but I found once limited myself to a few useful features I really started using it every day. For the most part I organize myself inside of Jira, but for tasks that I am currently thinking about I put them in a org-mode document. I have a few minor customizations, use a few hot keys, and that's it.
You could try spacemacs (what I use) or doom emacs. Both have vi-like keybindings as a default and are slightly easier to get going with than vanilla emacs. On the other hand, especially with spacemacs, there's more to learn than vanilla emacs and more that can go wrong.