A movie is only a useful suggestion if somebody can play it. MiruList tracks streaming availability for the services your group has, combines that with Plex libraries you choose to share, and lets a watchlist filter out films that are not actually watchable tonight.
Each account can choose its country and the streaming services it subscribes to. Those preferences mark films as available for you, and you decide when they should count for a shared watchlist.
Your subscriptions and Plex library stay private until you share them with a specific watchlist. That matters when one group watches at your place, another group streams at someone else's and a family list needs different choices from a late-night horror list.
Film pages show the places a title is available, including streaming subscriptions and connected Plex libraries. On a watchlist card, the availability badge gives the quick answer before anyone opens the film.
When the group is choosing, hide films nobody can stream and focus on what is left. The same watchlist can still keep the long-term ideas, but tonight's shortlist only shows real options.
If you connect Plex, films in the libraries you select count as available on lists where you share that source. A movie-night page can then show the chosen film's Plex row so you can open it where you watch it.
They see that a film on the shared list is available through a source you shared. They do not get a general account page listing everything you have.
Yes. Availability sharing is per watchlist, so one list can use your sources while another does not.
No. It is focused on your watchlist: which films your group already collected and can actually play.
The list still works as a watchlist and voting surface. Availability is an extra signal for narrowing the choice, not the only way to decide.