blog.liw.fi → posts → 2026 → This month in Radicle CI, August 2026

This is a monthly newsletter about the current state of Radicle CI, what has happened recently, and near future plans.

Current status

Radicle CI is in production use. There are several CI nodes, and Lars runs a public one for open source Rust projects at callisto.liw.fi.

Radicle CI use metrics

I now track Radicle CI use by counting job COBs that reach a public seed node run by Adrian. The data below excludes CI runs on my own CI nodes, to avoid skewing the numbers. I run CI a lot, as part of developing Radicle CI.

The data is collected in the job-cob-data repository by the job-cob-counts software.

Issues and patches

As of 2026-08-19.

Repository Open issues Oldest issue Open patches Oldest patch
ambient-ci 70 over a year 1 3 months
radicle-ci-broker 97 over a year 1 4 days
radicle-ci-ambient 16 over a year 0
radicle-native-ci 0 0
rad-ci 3 6 months 0

Office hours

The Radicle CI office hour is a place where anyone can show up and ask questions about Radicle CI or Radicle or anything related to them. Sometimes Lars or someone else will have a demo or a short talk.

This happens weekly at https://meet.ffmuc.net/radicleciofficehour. It's Jitsi and you only need a web browser and mic, camera is optional.

Each office hour is announced on #Annoncements and #radicle-ci on the Radicle Zulip, and on Lars' fediverse account (@liw@toot.liw.fi).

Upcoming:

Date Time
August 19 16:00 UTC
August 26 07:00 UTC
September 2 16:00 UTC
September 9 07:00 UTC
September 16 16:00 UTC
September 23 07:00 UTC
September 30 16:00 UTC

Overview of the past month

For the next month, Lars has worked on:

  • CI broker:
    • release 0.31.0 split adapter support from radicle-ci-broker into radicle-ci-adapter so that adapters written in Rust do not need to build all of radicle-ci-broker
  • Ambient:
    • releases 0.17.0 and 0.18.0 fix problems that stem from the "trusted VM" change in 0.16.0, as well as adding the pip_download and go_mod_download pre-plan actions
  • Ambient adapter:
    • release 0.21.2 fixes the adapter's own CI plan to publish deb packages and documentation in different places

Goals for 2026 (unchanged)

The primary goal for Radicle CI in 2026 is to get more people using it. To achieve this, much work is needed to improve awareness, documentation, installation, configuration, and operation. Some feature work and bug fixing will also be needed. While the basics work and are in use, things could be much more polished.

In addition, a supporting goal is to start tracking how much Radicle CI is used, based on job COBs.

Future plans

For the next month, Lars plans to work on the following:

  • Improve the HTML report and run log pages produced by the CI broker and Ambient. The goal is to improve correctness and usability, maybe even looks.
  • Open callisto.liw.fi for projects using Python or Go or anything else that works there now.
  • Fix as many bugs as possible in Radicle CI components rather than add new features.

Notes

If you have an open source Rust project and want to try Radicle and Ambient on callisto, see callisto.liw.fi for instructions.

Once Ambient supports more than Rust, callisto will accept non-Rust projects, too. But still only open source projects.

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