What has already been built
Substr is already much further along than a landing page and a pitch. Communities exist, threads are live, people can join corners, post in different formats, save things for later, tune the interface, and manage spaces with more intention.
This page is here so visitors can see that progress instead of guessing. It is not a promise board. It is a public snapshot of what is already real.
Discussion, Link, Media, Poll, Q&A
Bookmarks and collections are live
Substr communities can now carry live streams and chat
Nostr-native where it fits, careful where the standards still need time
Community foundations
Substrs can be created, managed, moderated, joined, and shaped into spaces with their own identity and structure.
New conversation formats
Posting is no longer just one flat thread type. Substr already supports richer community-native formats.
Personal utility
People can keep track of what matters to them instead of losing good threads inside moving feeds.

Recent product milestones
Long-form publishing through NIP-23
Substr can now carry longer writing natively, so communities are no longer limited to short feed posts and quick discussion threads.
Atmospheric themes and stronger visual identity
The interface now has a richer mood layer, with atmospheric backgrounds that make presets feel more alive instead of just changing flat UI colors.
Shared Nostr events and repost compatibility
Substr can now share external Nostr events in a way that feels native inside communities while still behaving correctly across other clients.
Signer onboarding v2
Account creation and signer access now feel like a complete onboarding flow instead of a technical setup dialog.
Live streams inside substrs
Substr now has its first real live layer for communities, without trying to become a video host itself.
Community space cards for moderators
Moderators can now shape the right-side community space with clearer, purpose-driven cards instead of one generic block.
Signer flow cleanup
Connecting a signer is now much clearer, especially on mobile, and no longer leans so heavily on one specific app path.
Settings and account polish
A lot of settings work has shifted from functional-but-rough to something that feels more deliberate and easier to trust.
Explore and community discovery
The discovery layer is getting sharper, with less wasted UI and faster actions directly from the cards themselves.
Safety and content controls
Substr now has its first real sensitive-content layer instead of leaving all viewing behavior flat and global.
Media posting and viewing
Media posts have become much more capable, from upload to reading, instead of relying on pasted links alone.
Feed and card polish
A lot of recent work has gone into making cards cleaner, more compact, and more stable across mobile and desktop.
Profile and community utility
Community spaces and personal profiles now have more of the supporting UI they need to feel complete.
Installability and web app polish
Substr now behaves more like a deliberate mobile web app instead of just a website with app-shaped pages.
Relay and publishing improvements
Publishing behavior has been tightened so posts and media have a better chance of showing up consistently across clients.
Remote signer flow
Remote signer and bunker-based signing now behave like real account access instead of a half-saved identity state.
Account and signer flow
Multi-account handling became more understandable, faster to switch, and better aligned with the mobile experience.
Polls
Substr now supports polls as a real post type instead of treating everything as generic discussion.
Q&A
Question posts now feel different from ordinary threads, with answer-driven UI instead of one flat reply stream.
Saved and collections
People can save posts for later and organize them into named collections without making the flow heavy.
Appearance and theming
The customizer has grown into a real product layer, with better persistence and more account-aware behavior.
Mobile polish
A lot of recent work has focused on making Substr feel intentional on phones instead of merely usable.
What this means
Substr is being shaped as something slower, more intentional, and more community-first than the usual social feed. That does not happen through one big launch. It happens through steady product work, testing, refinement, and a lot of small decisions that improve how the platform feels.
The goal is still the same: keep Substr free to use, light on noise, and aligned with a more open internet. This page simply makes the progress visible.
Some of the biggest decisions are still being made in the open too. Communities are currently living on the Substr layer while moderation, discovery, ranking, and infrastructure keep maturing, and the longer-term goal is still to move more of that closer to open Nostr standards when the time and relay support are right.
What we are refining now
Still early, already real
Substr is still early, but it is no longer just an idea. The community layer, posting system, personal utility, theming, moderation flow, and mobile experience are all being actively shaped into something people can actually use.