Is there a homebrew pokemon bank that works on Nintendo DS or is somebody working on it. BTW i want it to be similar to PHBank but can directly select save files and inject pokemon.

There's one being worked on, called pkmn-chest.

https://github.com/Universal-Team/pkmn-chest/releasesIs there by any chance a link to a thread or repository? Thanks for telling me about this! Very excited! Is it DSi-Mode or DS-Mode