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Your context, in one place.

Backstage brings your email, notes, calendar, photos and an AI that remembers them together. A private space, installed at home.

MITLocal dataPasskeySign in

Connected context4 sources

« What do I need to prepare for tomorrow's shoot? »

CalendarShoot Thursday 8:30 pm, Le Transbordeur

MailClaire V.: press accreditation under the media name, pick up on site

NotePit: first 3 songs, then side stage

ReminderCharge batteries and CF cards tonight

Thursday 8:30 pm at Le Transbordeur. The accreditation is under the media name, to be picked up on site; pit access for the first three songs, then side stage. Charge batteries and CF cards tonight.

Four pieces of your space merged into one answer · fictional example

MailInbox summary

CalendarClasses, reminders

MemoryEditable facts

ShootsShoot → delivery

CodeOne problem a day

At homeLocal files

Black and white: a singer sitting alone on white steps before going on stage. — Damso, 15 May 2026© Mattia Parrinello

Five times, the same context.

From the day before to the next morning: every hour finds what has already been said.

Illustrative example, fictional data.

Same context, from the first reflex of the morning to the selection the next day.

08:42

The day before the shoot

« What do I need to prepare for tomorrow's shoot? »

EventShoot: Le Transbordeur, Thursday 8:30 pmEmailClaire V.: “Accreditation under the media name, pick up on site”NotePit access for the first 3 songs, then side stageReminderCharge batteries + 2 CF cards the night before

Your shoot is Thursday at 8:30 pm at Le Transbordeur. The accreditation is under the media name, to be picked up on site (email from Claire V.); in the pit: first 3 songs, then side stage. Remember to charge batteries and CF cards tonight.

Add a reminder “leave 45 min early” for Thursday?

12:15

Lunch break

« I have a window at noon, where do I start? »

ReminderConfirm the accreditation with Claire V.EmailDraft written yesterday, ready to sendMemoryPreference: answer press officers in the morning

Start with the accreditation: a reply draft to Claire V. is already waiting in your email. Your notes say you answer press officers in the morning, perfect for this window. Gear can wait until tonight.

Send the reply draft to Claire V.?

21:58

The night before

« I'm packing the gear, can you confirm the list? »

Reminder2 charged batteriesReminder2 formatted CF cardsMemory35mm f/1.4 lens for the pitNoteWipes + lens hood forgotten last time

Batteries and CF cards are checked. Your note from the last shoot says you forgot wipes and the lens hood: add them now so you don't think about it tomorrow on site. The 35mm f/1.4 is indeed the right lens for the pit.

Add “wipes + lens hood” to tomorrow's list?

19:50

The evening of the shoot

« I'm on my way, what should I remember on arrival? »

EventAccreditation pickup under the media nameNotePit: 3 songs, then side stageReminderLeave 45 min early, confirmedContactClaire V. on site if anything goes wrong

On arrival: pick up the accreditation under the media name, then straight to the pit for the first 3 songs before moving to side stage. Your “leave 45 min early” reminder is confirmed. Claire V. is your on-site contact if anything goes wrong.

Keep this card open for the shoot?

09:30

The next morning

« What did I capture yesterday that I should remember? »

ProjectSeries “Stage 2025”: +38 photosNoteSide stage: warm light, frame wideMemoryClaire V. wants an export before Friday

Yesterday: 38 photos added to the series “Stage 2025”. Your side-stage note recommends warm light and wide framing. Claire V. asked for an export before Friday, to plan in the selection.

Create a task “Stage 2025 selection, Friday export”?

A singer in a red shirt, cut out against a white background, microphone in hand. — Jok'air, Pagaille© Mattia Parrinello

It remembers. You can check.

A conversation no longer stops at its last line. Useful facts are written down, deduplicated, then reviewed: what is remembered stays visible and fixable.

Memory · 3 factseditable

ContactClaire V., press officer, accreditations

PreferencePrefers bright light in the pit

ProjectSeries “Stage 2025”, delivery in progress

Remember

Preferences, decisions, contacts: the durable pieces survive the conversation that gave birth to them.

Connect

A fact about a person, a date or a project joins the others. A question about an event finds what relates to it.

Stay in control

Memory is not a black box: it can be read, edited and deleted from the interface.

A concert crowd, faces raised in red light. — Trebiz, 20 February 2026© Mattia Parrinello

Ask your question.

The demo answers from a set of fictional data, the way the app would with yours.

Limited demo, fictional data. No access to your personal space.

Work in progress

Accounts, keys, your own space.

Backstage is preparing to open up: a shared core (chat, memory, reminders, calendar, mail), modules each person enables as needed, and their own API keys. The work is in progress on a dedicated branch; none of this is available yet.

Your own account

Sign up with a passkey and a recovery code. An empty space from day one, isolated from every other account.

Your keys, your cost

AI, Google, Microsoft, weather, search: you plug in what you want with your own keys. No key shared between accounts.

Core and modules

The core is the same for everyone. Photos, concerts, LeetCode and other modules are enabled case by case, on request and based on feedback.

Free and limited

Access stays free during the test phase, with room for 10 to 15 accounts. This is not an unlimited service.

Branchfeat/multi-utilisateurs-byok

Read the roadmap View the code

Not available yet: open signups, account recovery, quotas, billing. The public demo is still the only entry point without an account. The app itself is in French for now.

At home, in one command.

Backstage runs on your machine: a data folder, one container, no dependency on a third-party service to exist.

Installation

curl -fsSL https://backstage.mprnl.fr/install.sh | bash

Node 22 and Docker · or clone the repository and follow the self-hosting guide.

Passkey access

No password to remember: entry is biometric, and every private route is protected by default.

Local data

Your space lives in JSON files, at home, with backups and atomic writes.

Confirmed actions

An email sent, a calendar changed: nothing goes out without explicit confirmation.

MIT licence

The code is public: read it, audit it, deploy your own instance.

Self-hosting guide View the code on GitHub

A silhouette suspended in two blue beams above the stage. — Damso, 15 May 2026© Mattia Parrinello

What if your day finally formed a whole?

Demo with fictional data · Public accounts in preparation

Sign in View the code