Gothenburg 2026 - Agenda

This is the agenda covering the whole event from 22 September 2026 until 27 September 2026. Please note that all times are approximate and neither all discussions nor all whiteboards fotos are included in this documentation.

Day 1 - Tuesday, 22 September 2026

8.30 Morning beverages available

9.00 Opening Circle

The 2026 Reproducible Builds Summit has been called to order with a fast-paced kickoff that includes words of welcome from the organizers, brief participant introductions, along with overviews of the agenda, participation guidelines and meeting logistics.

9.45 Project Updates I

Mapping who is in the room:
- Arch Linux
- F-Droid - Client 2.0 is ready, repo is 35% RB, academia verified 19k packages (83% built, 94% of them repro)
- open SUSE - Report
- OSS Rebuild
- rebuilderd
- Debian - https://reproduce.debian.net/ gates packages in the next Debian release (blocking regressions and new not reproducible packages

10.45 Break

11.15 Project Updates II

Mapping who is in the room:
- Build tools/registries OCI/ORAS
- Transparency logs: Sigsum
- repro-threshold
- Archiving + integrity/transpareancy of non-software stuff
- DETTRACE
  - https://github.com/bmwiedemann/dettrace
  - https://build.opensuse.org/package/show/devel:tools/dettrace

We continued the program with short question-driven updates from a range of participants on a range of projects from across the Reproducible Builds ecosystem.

12.30 Lunch

Participants were encouraged to sit with those who they have not yet met or engaged.

13.30 Collaborative Working Sessions

AT Proto / Distributing metadata
Bad and malicious builds
Reproducible image builds
Chasing the long tail of reproducibility

15.15 Closing Circle

The closing session invited participants to weigh in on what has been most useful during the course of Day 1, and to refine their goals and priorities for the agenda of Day 2.

16.00 Adjourn to Hack Time

19.00 Dinner -

Day 2 - Wednesday 23 September 2026

8.30 Morning beverages available

9.00 Opening Circle

The day started with a summary of Day 1 outcomes and a Day 2 Agenda Overview.

9.15 Collaborative Working Sessions

10.45 Break

11.00 Peer skill and knowledge share

Participants were invited and encouraged to request or share any skill they consider relevant to the meeting scope. The session were structured so as to minimize group size and maximize 1-on-1 sharing opportunities.

12.30 Lunch

Participants were encouraged to sit with those who they have not yet met or engaged.

13.30 Collaborative Working Sessions

High-priority non-reproducible packages (“last 1%”)
RB & Security
Transparency logging
Android file formats for reproducibility (notes missing)
Cross-distro reproducibility

15.15 Closing Circle

The closing session invited participants to weigh in on what has been most useful during the course of Day 2, and refine their goals and priorities for the agenda of Day 3.

16.00 Adjourn to Hack Time

19.00 Dinner

Day 3 - Thursday 24 September 2026

8.30 Morning beverages available

9.00 Opening Circle

The day started with a summary of Day 2 outcomes and a Day 3 Agenda Overview.

9.15 Collaborative Working Sessions

10.45 Break

11.00 Collaborative Working Sessions

12.30 Lunch

Participants were encouraged to sit with those who they have not yet met or engaged.

13.30 Mapping next conversations and next steps

The group took a small pause before the final session to take stock of the progress made to this point in the week and to inventory action items, next steps and other bridges to post-event collaboration.