This broke at least some functionality in our tree,
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=277902

There's no source tarball so USE_GITHUB is correct, in general just stick with what the handbook says about Rust and Go.

Remember to credit submitter correctly using the ´git --commit´, reference PR and use Reviewed by: entry (don't forget to add previous version).

LGTM, ship it!

Yes, whenever possible.

Whenever possible, use upstream release archive
https://github.com/Cloudef/bemenu/releases/tag/0.6.21

LGTM, nice work!

Now you need to prep a patch for removing conky-awesone
Preferably you should redirect users to this port in MOVED

Adding c++17-lang will be "good enough"

Try to look at logs more carefully, -std=gnu++1z is defined during build

Don't forgot to link to upstream changelog :-)

Should be split into 3 commits,

• Update
• Removal of port (directory) - With a brief explanation in commit msg why its being removed
• Entry to MOVED

What about these? (These might be installed if people are using ports and not Poudriere)
https://github.com/hzeller/timg/blob/v1.6.0/CMakeLists.txt#L59
https://github.com/hzeller/timg/blob/v1.6.0/CMakeLists.txt#L64

Have you at least build tested so users (ports depending on this one) don't break?

Looks good, however since you're removing sysutils/conky-awesome you also need to add an entry in MOVED
Prep that and post a link to that change (create a new phab review) here