I think you have still multiple options here. You could contact the FSFE, use the channels they usually on (IRC, Riot/Matrix, Friendica, Mastodon etc.). Try to

I think you have still multiple options here. You could contact the FSFE, use the channels they usually on (IRC, Riot/Matrix, Friendica, Mastodon etc.). Try to contact other hackerspaces (https://wiki.hackerspaces.org/Poland https://wiki.hackerspaces.org/Poland). Mostly they can help out with stuff which could be needed in the long run. What equipment do you have? 3D Printers, Sewing machines etc? You could make masks. That would be needed and is good publicity. Make a nice website and emphasize on the benefits of membership (own jabber/slack/whatever account, email, cheaper seminar fees and so on). What is your focus? Do you a theme (like spaceship or just makerspace?). Concentrate on that. Just ask for help with different stuff. If people see they can contribute to something then i think they will come. Well just my two cents.