Where Extended Matrix lives.
News, two recurring meetings, two chat channels, one issue tracker. Everything is open — drop in, ask questions, share work.
Latest news
Short posts about releases, milestones, EU-project news and other day-to-day community signal. The full archive lives at /news.
- 25 Jun 2026
EM Hour goes monthly — next session Thursday 9 July 2026
From the July edition onwards, the community happy hour settles into a fixed monthly cadence: the second Thursday of each month at 14:00 CET. Next session: Thursday 9 July, on Microsoft Teams. Open chat, screen shares, demos — no registration.
- 4 Jun 2026
Two community meetings in June: EM Hour (11th) and Dev Meeting (23rd)
Recurring meetings calendar reopens after EM 1.5 LTS: EM Hour on the 11th (community happy hour) and Dev Meeting on the 23rd (public coordination). Both on Teams in the browser — no Microsoft account needed; please use your real name when joining.
- 2 Jun 2026
EM 1.5 is out
EM 1.5 ships with Landscape mode, CronoFilter, the new TSU vocabulary, an LTS commitment, and a refreshed EM Tools manual — the result of two years of work and the launchpad for the StratiGraph 1.6 cycle.
- 2 Jun 2026
Extended Matrix at the heart of European projects
EM is now a building block of the StratiGraph European project — funded by the European Commission and contributing to the European Collaborative Cloud for Cultural Heritage (ECCCH).
- 2 Jun 2026
extendedmatrix.org, refreshed
A redesigned home for the Extended Matrix ecosystem: clearer onboarding, the 1.5 stable line front and centre, an open 1.6 development track, and a tighter window onto the StratiGraph European project.
Conferences, bazaars & talks
Yearly gatherings — EM Conference for users, EM Bazaar for developers — plus talks and workshops at partner venues. Recordings, slides and programmes are kept on each event page.
- Talk 8 Sept 2025
EM at DH 2025
Digital Humanities 2025 conferenceExtended Matrix presented at the Digital Humanities 2025 conference — talks, posters, and discussions on the StratiGraph trajectory, the CIDOC-CRM alignment, and the role of EM in the European Collaborative Cloud for Cultural Heritage.
- Conference 11 Apr 2024
EM Conference 2024
Rome, ItalyFirst Extended Matrix Conference — talks, workshops and a community gathering devoted to the formal language and the framework around it. The user-facing counterpart of EM Bazaar.
▶ recordings - Bazaar 21 Apr 2022
EM Bazaar 2022
Rome, ItalyEM Bazaar — the developer-focused gathering of the Extended Matrix community. Demos, code sessions, architecture discussions, and a look at what was coming next in the framework.
▶ recordings
EM Hour
The Extended Matrix Happy Hour — recurring informal session on the second Thursday of each month at 14:00 CET. Open chat, screen shares, demos, "what are you working on this week?".
Upcoming
- Thu, 9 July 202614:00 · 60 min
EM Hour — July 2026
Second monthly EM Hour — Thursday 9 July 2026, 14:00–15:00 CET, on Microsoft Teams. Open agenda: bring projects, demos and questions. Topics will be finalised closer to the date via the Telegram group.
Host: Emanuel Demetrescu Join meeting →
Past sessions
- Thu, 11 June 2026
EM Hour — first community happy hour
First Extended Matrix community happy hour — Thursday 11 June 2026, 14:00–15:00 CET, on Microsoft Teams. Open chat about the brand-new EM 1.5 LTS, the redesigned extendedmatrix.org, the StratiGraph EU project, and what the community is building right now.
Development meetings
Monthly public coordination for the codebase. Open by default, notes-first, decisions are recorded so direction stays transparent — especially as more contributors arrive with AI-assisted workflows. Each meeting has its own page with TL;DR, attendees, decisions and action items; async agenda gathering happens on the Meeting Notes discussion category on the dev-site repo.
Past meetings
- Tue, 23 June 2026
Dev coordination — June public sync
First public dev meeting of the post-1.5 cycle. Python-for-Blender pipeline, Oxigraph integration in EM, GraphML backups alongside the DB, EM Meter analytics with Jupyter, multi-national cataloguing mapping. Four action items assigned.
Decisions:- Move Oxigraph integration directly into the Extended Matrix library so the knowledge-graph can be written to the triplestore from Python rather than only exported as Turtle and re-imported.
- Adopt a parallel persistence model for the graph (DB + GraphML), so that recovery and external interoperability stay first-class even when the primary tool's database file becomes the source of truth.
- Treat property-graph vs triple-store as a mapping question, not an architectural choice — the same EM dataset must be expressible in both, with national archaeological cataloguing schemas (Italian, German, Israeli, …) as the user-facing layer.
- Adopt the Visual Studio Code + Jacques Lucke add-on workflow as the recommended Blender-Python dev loop (live reload, in-Blender debugger, no restart required).
Want to host a session, propose a topic, or just listen in? Say hello on Telegram →