I want to run this game with the new release of the Switch version, although I have a problem, as far as I know for the Any% category you need an autosplitter. Unluckily I don't have any kind of capture card so what can I do for speedrunning and submitting to the leaderboards?

For now I would just try to record the gameplay with your cellphone or something. As far as the leaderboards thing we need to have the game in our hands first but you are more than welcome to join the Discord server for updates.