>>349947362
Can't help you about libreoffice, but i strongly recommend setting up your own gitlab or using online services if you're into the idea. I guarantee you, the effort you'll put into learning basics of basics of git + basics of basics of gitlab will pay itself off pretty much instantly. You'll get boards with tasks you add, modify, explain further if needed, you'll have a version control system that always lets you roll back if necessary and keeps your project safe, simple act of writing down those tasks and putting them on kanban board makes you able to go smoothly, drop/pick up project any time with no effort because quick glance will remind you where you left it on, the list of upsides just goes on. I'm using this stuff for my projects and i can't imagine pulling through anything without that. You can find small gitlab hosting free online, or you can set it up locally, though second option is bit of a bother. Even if you're not trying to be professional at all, basic ability to note your idea in one sentence and then have it on board changes the way you work entirely, believe me.

Give it a shot.
[spoiler]t. someone who couldn't finish any project he started for years and years before finally going for this kind of system[/spoiler]