Can’t create Vercel connection — “Your account does not have the necessary privileges”

I followed this video, but it always gives me this strange error. I don't understand it, especially
SELF_SIGNED_CERT_IN_CHAIN

I did a fudging oopsie
Edge function + S3 mount: "Error: invoking realpath_sync is not allowed in the current context"
INCIDENT: Reports of increased latency on Supabase APIs
Performance issues with RLS
Cannot upload file

HIPAA compliance
Supabase & Cursor with vibe coding no code background. How to build easier?
emailRedirectTo parameter not working - Supabase ignoring custom redirect urls
emailRedirectTo: 'https://mydomain.com/auth/callback'
in supabase.auth.signUp()
...Cannot connect supabase to vercel

Not getting user exists error when creating user whose email is already there.
Subabase Storage Erorr in AWS S3 connection

Error downloading document

Using Load Balancer's is giving me 404 on a query to table.
Self-hosting: Kong cannot resolve realtime service
supabase-js v2: PKCE session lost after tab switch (persistSession + autoRefreshToken not working)