database schema

(This is woefully incomplete and unmaintained.)

Twitch Model

twitch_user_id Though numeric, this should always be a string per [https://discuss.dev.twitch.tv/t/bug-v5-api-returns--id-as-string-for-featured-channels/10310] and [https://discuss.dev.twitch.tv/t/type-of-user-id-in-api-responses/10205]
twitch_channel_id This is the same as twitch_user_id. They're exactly 1:1. Prefer to use 'user_id' terminology.
twitch_username Between 4 and 25 characters.