Osu? Has a mode called Osu!Mania. https://osu.ppy.sh/home. Source: 11 months ago

You can play on osu! (it's free and has a Taiko mode too) and get the sounds here: Idol (TV Size) and Idol English Ver.. Source: 12 months ago

There are currently 2 different rank leaderboards: one for the stable client and one for the lazer client. The osu! Website shows rankings of the stable client while lazers ingame profile viewer shows the rank you achieved in the lazer client using the osu!lazer website. There are fewer people playing osu!lazer than the stable version which is why your rank is higher. Source: about 1 year ago

(Also Elite Beat Agents/Osu! Tatake! Oendan! Are fuckin' great for any skill level, but if you don't feel like digging out your DS I'm just gonna shill the freeware clone osu! instead.). Source: over 1 year ago

IIRC OSU! Has remarkably low system requirements. Source: over 1 year ago

Stackoverflow doesn't use AI but they have a teams area where users can ask questions and people within their organization can answer them thus creating that database. https://stackoverflow.co/teams/. Source: over 1 year ago

Stack Overflow For Teams - Knowledge sharing and collaboration without distractions. - Source: dev.to / almost 2 years ago

To solve this problem for smaller teams I like to use private StackOverflow for teams: https://stackoverflow.co/teams/. - Source: Hacker News / almost 2 years ago

Stack Overflow's primary monetization strategy is based around their business and enterprise SaaS product, Stack Overflow for Teams. The success of that product is wholly dependent on the free and open public community which establishes credibility, so I don't think this is something to worry about. Source: almost 3 years ago