About Plenumos

Why we are building this

Plenumos started from a very ordinary conference problem: Stanisław travels to academic events and kept seeing the same last-minute scramble around slides. Speakers send files by email, versions get mixed up, organizers chase updates, and nobody is fully sure which presentation is the final one.

We want to make a small, practical tool for small and medium-sized events — first for academic conferences and seminars, then possibly for any gathering where people need to collect, update, and share materials without the usual attachment chaos.

Plenumos is built by Stanisław Szufa, a researcher in computational social choice who regularly presents at conferences, and Ignacy Janiszewski, a data engineer who works on data platforms and civic-tech projects. We have already worked together on several projects, including Pabulib, an open library of participatory budgeting data. We are developing Plenumos with support from the KMS entrepreneurship incubator, Kraków Miastem Startupów.

What Plenumos does

Plenumos helps conference organizers collect and share speaker materials — slides, PDFs, and notes — in one tidy place. Speakers upload their files through a personal link; attendees browse and download everything from the conference page.

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Upload & version materials

Speakers upload PDFs and slides. Multiple versions are supported.

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Flexible access control

Conferences can be public, password-protected, or invite-link only.

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Bulk download

Download all conference materials as a ZIP in one click.

Want to see it in action? The Example Demo conference is freely accessible — no login needed.

Explore Demo →

See how it works

01
The conference page

Speakers and their materials in one place. Anyone with the link can browse and download.

Conference page with speakers and materials
02
Invite speakers with one click

Generate a ready-to-send message with a personal upload link. Copy and forward it — no account needed for speakers.

Speaker invite dialog with personal link
03
Speakers manage their own files

Each speaker uploads and replaces versions on their own. You always see what's current.

Speaker file management with version history
04
You control access

Password-protect, share a magic link, or keep it public. Change it any time.

Conference access and security settings
05
Configure upload rules

Set allowed file types, max file size, and document limits per speaker.

Upload settings configuration panel