Use the "share" button in the top bar to create a sharing link. :)
I'll tell you why I didn't suss this out (and I think this is a geek blind spot more than a true UX flaw).
1. I decided all the options FOR the app would be inside the part of the screen owned by the app (i.e. not the top bar). So I only looked there.
2. I was expecting the url in the browser's address bar to be shareable.
I'll see if there's something we can do to make this essential UI element more discoverable.
To some extent, it's a matter of learning about Sandstorm -- Sandstorm's role in the web app ecosystem is basically to add sharing & access control, so maybe everyone has to learn this. But hopefully we can help people figure it out more easily.
It did take me a while to figure out how to delete "grains" (I would've thought from the list of grains, instead I had to open one and click the delete button).
Also, I don't quite understand why I started out with five wekan grains from the get-go? Maybe a bug.
Also, I think first-time users might need some more hints (like unintrusive first-run popups or something) that the top bar is the Sandstorm stuff, while the rest is the app itself. I don't know what would be the best way, it seems quite challenging to design something like this :-)
What does the key icon do? (No hover text.)
Maybe "Share" should say "Share app"? (So I don't get confused into thinking it means "share this one wekan note" or "share this particular song from groovebasin".)
Yesterday in particular Oasis was under heavy load from HN, if you clicked on New Wekan a bunch of times before it did it, it might have made a bunch. Usually it's near instant so this sort of thing doesn't happen.
paulproteus will love all your feedback. He likes feedback. :D
FWIW, the first version of Sandstorm let you copy/paste the URL from the address bar, and I'm definitely a fan of that model. But, a lot of people are uncomfortable with that. It "feels" insecure. So we're trying to find a happy middle ground, where the people who like URL sharing can use it, and those that don't can avoid it. It will take some experimentation to get right.