This is exactly what I've been thinking about making recently as a response to the enshittification of the web: a single site that just collects a small number of useful, simple web apps that I could share with other people who are tired of being perversely monetized by ads and VCs. Utterly brilliant, thanks for sharing!
There are various similar communities, which don't have to compete with one another because the internet is a big place. Two that jump to mind are https://tildeverse.org and https://disroot.org.
Dashboard is only accessible by my wireguard network, Which they can turn the LAN mode on on, so it doesn't route all their traffic, just to the local domain.