AnnouncementByte Teaching is now Petrios
PETRIOS

A learning platform stores course content. Petrios runs the live teaching around it — scheduling, attendance evidence, feedback, video, certificates, and the admin in between, across your trust or teaching programme.

Evidence-basedSelf-hostableYours, by design

Organisation

For trusts & programmes

Coordinate teaching across departments with shared scheduling, audit reports, member management, and oversight. Join your programme with the code your teaching lead gave you.

Built for everyone in the room

T

For trainees

Turn up, and the evidence takes care of itself.

Check in with your account or the secure session code; organisers review and finalize a complete attendance roster. Your progress view brings attendance, reflections, certificates, and a verifiable portfolio pack together. Recall quizzes support learning after a missed session without rewriting physical attendance.

F

For teachers & faculty

Teaching should count for you too.

Claim a teaching slot in one click — no account needed if you’re external. Teacher reports contain privacy-safe aggregate feedback, teaching certificates follow accepted assignments and finalized session governance, and every session you teach builds an appraisal-ready dossier: sessions, hours, reach, and improvement themes.

O

For organisers

Run the programme, not the inbox.

Publish availability and let teachers claim it. AI drafts speaker chases and thank-yous, while moderators can turn a full week of teaching and its materials into a polished departmental newsletter. Nothing sends until a human reviews and approves it.

A different shape of system

Why teaching programmes outgrow spreadsheets, sign-in sheets, and content platforms.

The usual way

Sign-in sheets and box-ticking

A register that proves someone held a pen.

Records trapped in one trust

Rotate hospitals and your history evaporates.

Per-seat licences and lock-in

Your data lives on someone else’s terms.

Admin by inbox-chasing

Who’s teaching Thursday? Did anyone reply?

The Petrios way

Evidence-based attendance

Check-ins and reviewed evidence feed one revisioned, finalized roster.

Records that travel

Signed, portable teaching records any instance can verify.

Open source, your servers

AGPL-3.0. Self-host everything — database, email, video, even the AI.

AI drafts, humans approve

The assistant writes the chasing; every email waits for your sign-off.

How it works

01

Join

One 6-digit department code for trainees. External teachers need no account at all — email links do the work.

02

Teach

Schedule sessions or publish claimable slots. Built-in video, QR feedback, private documents, automatic reminders, and certificates after attendance finalization.

03

Evidence

Attendance records, reflections, certificates, and feedback compound into portfolio packs, dossiers, and audit reports — automatically.

Explore all features →

Open source. Your servers. Your data.

Petrios is free software (AGPL-3.0). Self-host the whole platform inside your trust — your own database, mail relay, video server, even an in-network AI model — and integrate anything through the org-scoped REST API and signed webhooks. Teaching records are portable and verifiable across instances, so a trainee's history survives every rotation.