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Bryan Lee suggests storing self-hosted Edge Functions in S3 to enable easy editing and deployment across multiple servers. This would allow functions to be pulled from any server, enhancing high-availability and true edge execution. Andrey A. acknowledges the suggestion.
Here: https://github.com/supabase/supabase/blob/master/apps%2Fstudio%2Fpages%2Fapi%2Fplatform%2Fprojects%2F%5Bref%5D%2Fdatabases.ts