RE: mastodon.social/@bagder/116359Could be potentially nice for fediverse server testing, as more implementations make the jump to final RFC 9421 HTTP signatures.On the flip side, ever more complex curl invocations (here: Accept header plus signature fields plus key file, presumably) suggest use of more specialized CLI tools, such as provided by @fedify, or at least scripts/aliases.Speaking of RFC 9421, which notable fediverse implementations can't handle it yet? Anyone keeping track?#ActivityPub #FediDev #RFC9421