notes app
notes is Writing application that is open source under the GPL-3.0-only license.Notes is a simple but effective app for taking plain text notes and making check lists. It started as a little playground to learn a new dev framework but quickly evolved into the desire to create a meaningful product.
Apps these days tend to offer an elaborate set of features, at the cost of asking the user for many permissions. Notes takes the opposite approach: it carefully picks a small set of essential features so that the user does not have to worry about security and privacy related issues. Your data is yours to keep.