Served directly from Caddy?

[alainwolf]

Would it be possible to serve these error-page templates from Caddy, without running an additional service.
Not only it wouldn't need an additional server running, but I could use variables from Caddy directly, like respond {err.status_code} {err.status_text} but also many others in the "details".

They are both written in Go, and use templating.

Unfortunately I'm myself not fluent in Go or Go templating. But maybe somebody has already done that?