With --cleanbuild and -f options added after having erased
~/share/yay/edbrowse-git and ~/.share/yay/quickjs I got:

==> Starting package()...
mkdir -p -m 755 /home/jude/builds/edbrowse-git/pkg/edbrowse-git/usr/bin
install -m755 edbrowse /home/jude/builds/edbrowse-git/pkg/edbrowse-git/usr/bin
install: cannot stat 'edbrowse': No such file or directory
make: *** [makefile:82: install] Error 1
==> ERROR: A failure occurred in package().
    Aborting...

I doublechecked by building in a cleanchroot and everything works fine. Something in your build environment seems amiss.

If you want to investigate that further, you need to append the --log parameter to the makepkg command and upload the build logs somewhere.

a command like

curl -F 'f:1=<-' ix.io < path/to/log-file

works well for that. after it has finished there will be an url shown on the command line, that's what we need to see the logs.

There's no telling how much time troubleshooting will take, incase you need edbrowse soon building using a clean chroot is probably best solution.

Are you familiar with devtools & extra-x86_64-build ?

LW