So I updated #Pixelfed on https://instafops.net to 0.15.2 to bring it back online. But now it can't federate with other ActivityPub servers on my own RFC1918 network (including this Mastodon server). 
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[2026-11-03 10:32:29] production.DEBUG: Skipped ActivityPub delivery to invalid inbox {"profile_id":560011294637559862,"index":1,"url":"https://red.fox.yt/inbox","reason":"private_ip","error":"Invalid ActivityPub destination URL: private_ip"}
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I hope there's an environment flag I can set to fix this, because this is pretty annoying. 
