No. A1CF5A Tuesday, September 22, 2026 24h to 09:40

The Nostr Observer

Printed from one corner of the network

Ranked as EZ 658 events through your lens 217 voices

Private messaging · Back from the rebuild

White Noise returns. The group stays together.

New native apps for iOS and Android put offline catch-up and reliable group conversations at the centre of the release. The first audience is Nostr.

White Noise is back with rebuilt mobile apps and a practical promise: return after time offline and find the conversation waiting. The release announcement says devices with the same authenticated history now settle on the same group state, even when changes arrive in a different order.

The project puts it plainly: In plain English: the group stays together, and people get the messages waiting for them when they return.

Both apps and their shared core have been rebuilt. The project says the work accounts for several months without a release, and that friends and family have spent the past several weeks testing real group chats. It expects the new foundation to make subsequent releases more frequent.

Replies, reactions, mentions, encrypted media, multiple accounts and group invitations are part of the package. On Android, the additions include voice dictation, Read Aloud and QR cards for profiles and invites.

On iOS, the announcement describes Face ID protection and screenshot blocking. It says Apple receives a generic notification wake, while the phone constructs the visible message locally; sender, group and message details stay off Apple’s notification service.

White Noise uses the Marmot messaging protocol and end-to-end encrypted groups. An account is a keypair the user controls, with no phone number or email address required. The project describes relays as replaceable, including with one a user runs themselves.

Availability is specific: iOS through TestFlight, Android through Zapstore. The team calls this a sneak peek for Nostr and asks testers to send problems through support inside the app.

Max’s accompanying release note conveys the effort behind the quieter product language: This was so damn hard. The next test is the ordinary one: people leaving a group chat, coming back, and being able to keep talking.

Amber 6.6.5

A separate key for the backup

Amber changes how it encrypts application backups published to relays. The new release uses a dedicated key derived from the account key, instead of encrypting the backup directly under the user’s main identity key.

The release notes describe why that matters: an app with a remembered permission to decrypt NIP-44 messages could fetch the old backup event and read its contents, including app connection secrets and local keys. The dedicated backup key closes that route for newly published backups.

There is a transition: existing identity-encrypted backups still restore through a fallback until the next backup publication overwrites them. Installing the release and replacing the old backup are distinct parts of that change.

The update also restores a missing prompt: after logging out and back in with backup publishing disabled, Amber should once again offer to restore.

From the picture desk

A reason to look up

A lakeside photograph accompanying Permanerd’s reminder to look around and notice beauty.
Permanerd shares a waterside view with a reminder that there is more to notice than a rising number. The post leaves the location unnamed.Picture: Permanerd

Baby sets the deadline

A painted sketchbook shared by existing sprinkles, whose return to painting was interrupted by baby.
Existing sprinkles wanted to get back into painting. This was as far as the session went; baby, the accompanying post explains, has left the work impressionistic.Art: existing sprinkles

March, from the archive

Danielw’s photograph of Niagara Falls from Canada, captured March 5, 2019.
Danielw’s Niagara Falls photograph was taken from Canada on March 5, 2019. A cold, windy day recalled in a fresh post: the photograph belongs to the archive.Picture: danielw

Dispatches

Zapstore · A prototype

Bring the search home

Zapstore’s version-two experiment starts with an analogy: a Bitcoin node syncs blocks and queries locally; an offline map downloads its tiles. An app store could likewise pull release bundles and answer searches on the device.

The project reports an early prototype written afresh in Kotlin, with faster browsing and search. The privacy claim is more concrete: For update checks, no need to reveal your installed app set to any remote server.

Tor by default is also in the proposal. This is a promising prototype in Zapstore’s own account, with more details to follow; the post does not announce a public version-two release.

Mostro · Two releases

Choose the node. Reach the solver.

Mostro announces Mostrix 0.3.4 with a picker for trusted instances, clearer order-book filters and payment-method choices that follow the selected currency.

The release also repairs the anti-abuse bond QR flow after Escape or a restart, and lets users manage Blossom media servers much as they manage relays.

A separate announcement introduces Mostro CLI 0.16.2. Its dispute chat can now reach the dispute solver directly. The project also reports a lighter peer-chat envelope, corrected fiat-amount labels and a move to the GPLv3 licence.

An experiment at home

Two months without the subscription

Matt Lorentz reports nearly two months since cancelling Cursor: development work now runs on open-weight models, while a separate personal assistant runs entirely on self-hosted models.

In a follow-up, Lorentz lists the assistant’s actual chores. Hermes and Qwen on an old gaming PC produce morning news and weather, afternoon plant-care reminders, travel research and notices when watched websites change.

The list also includes software security reviews, which Lorentz treats with caution. The useful detail is the routine: an old computer helping with flower-bed drainage, purchases and movie tickets.

In brief · On the calendar · The exchange

In brief

The next stop is a recording

Joe Martin follows up on the gifted guitar featured here on Sunday: Sounds so great, can't wait to record with it and write a load of new tunes! The instrument is already getting played; a recording is something to look forward to.

Back from the quiet

A.A.Ron returns from a week hunting in the Talkeetna Mountains with a caribou and the familiar difficulty of readjusting to town. The homecoming brings a quieter family lesson: teaching their oldest son to make burger patties and brats.

At the close

Marked live at this edition’s 09:40 close: Synthdragon Radio’s CHILL and FIERCE channels, with Aug 31 start dates; and ScardustTV, listed by Stream Road with a Sep 5 start and a US-tour announcement.

On the calendar

Today, Sep 22 — Munk Night, 18:00 upstairs at The Lady Ottoline, London. A Bitcoin social; all welcome.

Sep 23 — Haleen Live Equinox 2026, a livestream at 20:00 Lisbon time. The listing says the viewing link will follow.

Sep 26 — Build In El Salvador’s social and launch party, 17:00 in Santa Tecla. RSVP requested.

Sep 30 — Leamington Spa Bitcoin Meetup, 19:00 at The White Horse, Clarendon Avenue.

Times are local to the listed place, or the stated stream timezone.

The exchange

A belt, with sizing advice

Leathermint lists a Black Buffalo belt at US$50. The seller advises adding two inches to trouser size, or using the measurement instructions in the listing’s image.

21 imagined futures

The Bitcoin Shop UK offers 21 Futures: Tales from the Timechain for £18. The active listing is for a paperback collection of twenty-one stories by twenty-one authors, with a full-page grayscale illustration for each story.

The next market

Oct 21 — The Monthly Bullish Market lists The Bullish Shop and Rustypuppy Artworks, with music, auctions and door prizes. Online at 18:00 Chicago time.

The Instrument

400 notes. None in common.

The same 24-hour window returned 400 notes without your lens. None overlapped the 400 ranked notes read for this edition.

This compares the two note selections. The 658 events in the dateline also include the other desks; the page is an editorial selection from that material. The control tells us how different the reading was, not how much of the whole network it represents.