Postr is a one-screen Android app with one job: compose a kind-1 note and send it to your relays. Feeds, DMs, zaps, and wallets already have excellent homes in other clients. Cutting scope this hard made room to build the remaining path with unusual care.

Its durable outbox survives airplane mode, process death, and unreliable
relays. Postr verifies the exact signed event by reading it back, and every
retry reuses that event so it cannot create a duplicate note.

Private keys stay in Amber. Postr asks only to sign kind-1 notes and
file-scoped Blossom upload authorizations. It has no feed, analytics, ads,
or private-key storage.

code: https://gitworkshop.dev/npub1qwkd5wzftcxquuhtkcg0xn9ed7evksluuppf7qdmdh34ywe9uncs5uqfvl/postr