2025-12-21 UTC
# 
autumnlilybug ulhar4409[d]: see my blog post, but tldr the endpoint is an API endpoint that takes a param for the source, a param for the target, and optionally a param for the voucher, and then if the synchronous validation step succeeds the user is redirected to the target, otherwise to a 404, and the async step is identical to a standard POST-style webmention