Sorry, but I won't merge this patch. This abuses the fractional scale
protocol. grim doesn't display anything on-screen, so shouldn't use any
wl_surface to guess the output scale. There are a number of cases where
this will break.

Looks good to me!

Thanks for sending a patch! Not sure this is really something desirable
though. I've added a comment on the issue.

Good catch! Pushed, thanks!

Sorry for the long delay… Another patch implementing the same
functionality has been merged. Thanks for working on this still!

Sorry for the delay! The patch LGTM, I've pushed it. Thanks!

Might be nice to pretty-print the output in kanshictl. (For programmatic
use, it's better to use a generic varlink tool instead.)

Sorry, I think I prefer to keep building under older Go versions, rather
than bump the minimum requirement just for some convenience utilities.

Pushed, thanks!

Thanks for letting me know and for taking care about such details, I've
pushed a copyright line!

This is dangerous when seatd is suid-root, I believe.