aniz is a program for keeping a local list of anime you have watched.
$ # First, an anime database needs to be downloaded.
$ # Run this once a week to have the latest database at all time.
$ aniz database download
$ # Search for an anime in the database
$ aniz database -s 'Attack on titan' | head -n1
tv 2013 spring 25 Shingeki no Kyojin https://anidb.net/anime/9541 https://cdn.myanimelist.net/images/anime/10/47347.jpg
$ # Add one or more animes to your list
$ aniz list plan-to-watch \
https://anidb.net/anime/9541 \
https://anilist.co/anime/11981 \
https://kitsu.io/anime/7929
$ # Show your list
$ aniz list
2023-04-19 p 0 0 Shingeki no Kyojin https://anidb.net/anime/9541
2023-04-19 p 0 0 RWBY https://kitsu.io/anime/7929
2023-04-19 p 0 0 Mahou Shoujo Madoka★Magica Movie 3: Hangyaku no Monogatari https://anilist.co/anime/11981
$ # Watch an episode
$ aniz list watch-episode https://kitsu.io/anime/7929
$ aniz list
2023-04-19 w 1 0 RWBY https://kitsu.io/anime/7929
2023-04-19 p 0 0 Shingeki no Kyojin https://anidb.net/anime/9541
2023-04-19 p 0 0 Mahou Shoujo Madoka★Magica Movie 3: Hangyaku no Monogatari https://anilist.co/anime/11981
$ # Complete show
$ aniz list complete https://anidb.net/anime/9541
$ aniz list
2023-04-19 w 1 0 RWBY https://kitsu.io/anime/7929
2023-04-19 p 0 0 Mahou Shoujo Madoka★Magica Movie 3: Hangyaku no Monogatari https://anilist.co/anime/11981
2023-04-19 c 25 1 Shingeki no Kyojin https://anidb.net/anime/9541