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Welcome to the biku wiki!

I'll try to keep all the info about biku here. Mostly FAQ.

FAQ

Why needs an osu! API key?

The first time you start biku, it will generate a biku-cache hidden file which stores a minimal dictionary of .osu hashfiles from osu!db. If since then you update or add a new map into osu!, this biku-cache will not have the hashfile entry for that map and thus can't calculate the pp and will not appear in biku. If an osu! API key is provided, then it can perform a simple query to the osu! API and store the hash for that osu file in the biku-cache. (It is possible to read again osu!db by clicking the "Refresh cache" button, but osu! has to be closed).

Why my new replay isn't listed in the table?

First, exit from the score screen when you finish playing the song (osu! doesn't seem to save the replay in the filesystem until you are back to song selection)

If it is still not displayed, then it is because the replay is from a new/updated song since you started biku for the first time (and you didn't insert an API key). To solve this you can close osu! and click the "Refresh Cache" button or don't worry anymore about it setting an osu! API key by clicking the "Set osu! API".