“Smash Training Retrospective”, Waleed Khan2020-12-06 (; backlinks; similar)⁠:

Smash Training is a spaced-repetition training web-app I created to help my progression with Super Smash Bros. Ultimate. I released it on May 16, 2020 on Reddit to warm reception. As of December 2020, it receives 150–200 monthly users. I’d rank it as my most successful project! In this article, I discuss the choices I made for this project. (The source code is available).

…I decided that I wanted to build a spaced-repetition training app, rather than reuse a general-purpose spaced-repetition flash-card system such as Anki, because the project would benefit from domain-specific knowledge. For example:

…Stronglifts has you note down how many repetitions of the exercise you succeeded at (out of five). However, the Smash Training paradigm is different, and has you repeat the exercise for a length of time and rate your accuracy.