Gen Z Apps62
Card Wiki Prices: A crowdsourced pricing database for niche TCGs the big price sites ignore, from regional one-piece-style games to out-of-print sets.
Pick three neglected TCGs, seed prices weekly with volunteers and monetize through a developer API once data is deep.
Why it can work: Big price sites cover Pokemon and Magic and ignore niche games with passionate collectors; owning the data for ignored games is an uncontested position.
Budget calculator
Brunei budget calculator
Enter what you can spend and how much time you have — see which Brunei ideas actually fit, with BND costs.
BND 1,000