Introducing Postr, a deliberately small Nostr composer for Android.
Post. That's all.
A durable outbox survives airplane mode, process death, and unreliable relays. Once Amber signs a note, Postr keeps working until it can verify that exact event on your relays.
Private keys stay in Amber. Postr requests only two signing capabilities: kind-1 notes and file-scoped Blossom upload authorizations. It cannot read DMs, sign unrelated event kinds, or publish a relay list.
Postr also includes verified Blossom attachments, mention search, opt-in link previews, and a zero-blue night theme you can retint end to end.
Install: 
Code, issues, and contributions: 
Inside the architecture: View article →
#postr #nostr #android #foss #grownostr
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