Computer history enthusiasts lack accessible ways to experience vintage systems as they were originally used. Emulators often focus on games rather than complete period workflows.
Build cloud-hosted emulations of classic systems with original software libraries and scanned documentation. Include social features for sharing configurations and discoveries.
Educational institutions and retro computing fans would pay for subscriptions. Consider corporate sponsorship for specific system preservations.
Start with one well-documented 1980s computer system and expand from there.
Biggest risk is copyright challenges for included software.