Free open source personal information manager software (includes email, contacts, calendars, tasks, notes).
Fediverse address:
@EvolutionGnome@floss.social
Tagged: Personal Information Managers
Firefly III
Free open source personal financial management software.
Fediverse address:
@ff3@fosstodon.org
TiddlyWiki
Free open source personal wiki, which can be used as a notebook, to-do list, website etc. It stores its content and code within a single HTML file which includes all the needed CSS and JavaScript, so it can be used through any browser without installing anything.
Fediverse address:
@TiddlyWiki@fosstodon.org