rg90 is Flarum Free a long-term project?
Yes, I suppose. Personally, I don't plan to quit anytime soon
rg90 I would not like Flarum Free to disappear from nowhere and I lose the whole discussion.
It is definitely not going to disappear without a warning. If anything happens (I hope not), it will be announced there. Moreover, you are free to download your database at anytime from your FreeFlarum settings page, so your data won't disappear either.
rg90 do I have any restrictions regarding uploaded data, images, etc.?
Yes, we don't allow direct file upload to our server, so at the moment you must use an external service, such as Imgur. This might change in the future.
rg90 Another thing, I would like to run Flarum Free on my domain, but I'm not able to set it up.
I don't know what registar is that, but I think that your FreeFlarum URL (without https://, eg.: rg90.freeflarum.com.
) is supposed to go in the "Content" field. At FreeFlarum, you then type in the CNAMEd URL (without https://, eg.: yoursubdomain.rg90.cz
).
rg90 is it possible to install on a PC to some folder and then just copy it to FTP?
Outside FreeFlarum, technically yes (we don't provide FTP access), but it's not recommended AFAIK. The installation process is not that hard even for inexperienced user IMO, because everything is documented here: https://docs.flarum.org/install.html