> Another thing is org-mode. [...] Can someone recommend a good "light" tutorial for it? What are you using it for?
I would recommend starting using Org just for note taking, using its outline capabilities. It's simple and avoid being overwhelmed and buried in features. One tutorial for this is [1], but even then it has advanced parts you can ignore at first. There are many Org tutorials, at some point it's best to just pick one and dive in instead of looking for the best one and ending up paralyzed by choice (a problem sometimes with Org and Emacs...).
Then once familiar with this you can extend your usage in various directions: add TODO and agenda for GTD, use it to export to nice web pages with a "read the doc" theme [2], etc.
I would recommend starting using Org just for note taking, using its outline capabilities. It's simple and avoid being overwhelmed and buried in features. One tutorial for this is [1], but even then it has advanced parts you can ignore at first. There are many Org tutorials, at some point it's best to just pick one and dive in instead of looking for the best one and ending up paralyzed by choice (a problem sometimes with Org and Emacs...).
Then once familiar with this you can extend your usage in various directions: add TODO and agenda for GTD, use it to export to nice web pages with a "read the doc" theme [2], etc.
[1] https://sachachua.com/blog/2008/01/outlining-your-notes-with...
[2] https://github.com/fniessen/org-html-themes