Community managers in action: Leading a developer community for good - Related to container, leading, developer, january, action:

Container query units: cqi and cqb

A little gem from Kevin Powell’s “HTML & of the Week” website, reminding us that using container queries opens up container query units for sizing things based on the size of the queried container.

cqi and cqb are similar to vw and vh , but instead of caring about the viewport, they care about their containers size. cqi is your inline-size unit (usually width in horizontal writing modes), while cqb handles block-size (usually height).

So, 1cqi is equivalent to 1% of the container’s inline size, and 1cqb is equal to 1% of the container’s block size. I’d be remiss not to mention the cqmin and cqmax units, which evaluate either the container’s inline or block size. So, we could say 50cqmax and that equals 50% of the container’s size, but it will look at both the container’s inline and block size, determine which is greater, and use that to calculate the final computed value.

That’s a nice dash of conditional logic. It can help maintain proportions if you think the writing mode might change on you, such as moving from horizontal to vertical.

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GitHub Availability Report: January 2025

In January, we experienced three incidents that resulted in degraded performance across GitHub services.

January 09 1:26 UTC (lasting 31 minutes).

On January 9, 2025, between 01:26 UTC and 01:56 UTC, GitHub experienced widespread disruption to many services, with customers receiving 500 responses when trying to access various functionality. This was due to a deployment which introduced a query that saturated a primary database server. On average, the error rate was 6% and peaked at [website] of modification requests.

We were able to mitigate the incident by identifying the source of the problematic query and rolling back the deployment. The internal tooling and our dashboards surfaced the relevant data that helped us quickly identify the problematic query. It took us a total of 14 minutes from the time to engage to finding the errant query.

However, we are investing in tooling to detect problematic queries prior to deployment to prevent and to reduce our time to detection and mitigation of issues like this one in the future.

January 13 23:35 UTC (lasting 49 minutes).

On January 13, 2025, between 23:35 UTC and 00:24 UTC, all Git operations were unavailable due to a configuration change related to traffic routing and testing that caused our internal load balancer to drop requests between services that Git relies upon.

We mitigated the incident by rolling back the configuration change.

We are improving our monitoring and deployment practices to improve our time to detection and automated mitigation for issues like this in the future.

January 30 14:22 UTC (lasting 26 minutes).

On January 30, 2025, between 14:22 UTC and 14:48 UTC, web requests to [website] experienced failures (at peak the error rate was 44%), with the average successful request taking over three seconds to complete.

This outage was caused by a hardware failure in the caching layer that supports rate limiting. In addition, the impact was prolonged due to a lack of automated failover for the caching layer. A manual failover of the primary to trusted hardware was performed following recovery to ensure that the issue would not reoccur under similar circumstances.

As a result of this incident, we will be moving to a high availability cache configuration and adding resilience to cache failures at this layer to ensure requests are able to be handled should similar circumstances happen in the future.

Please follow our status page for real-time updates on status changes and post-incident recaps. To learn more about what we’re working on, check out the GitHub Engineering Blog.

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Community managers in action: Leading a developer community for good

Jumpstarting your career as a community manager.

Before joining the program, I knew nothing about DPGs. So, if like me you’re unfamiliar with DPGs, they are open source solutions—including software, data, and AI models that adhere to the DPG Standard. This standard ensures alignment with the UN’s Sustainable Development Goals (SDGs) while complying with privacy laws and harm prevention practices. DPGs play a vital role in creating equitable systems by reducing vendor lock-in and fostering local innovation.

Damilola, along with his fellow community managers, were all connected with a specific DPG that needed support engaging external contributors. They learned the in’s and out’s of that specific organization, as well as the best way they could help contribute to their mission.

What’s the program like for community managers?

For two months, I’ve been leading efforts to highlight the Social Income community volunteers and contributors. One of my tasks was developing a webpage using the GitHub REST API to display the public repository insights of Social Income. This includes showing a list of contributors and a table of open issues. This effort makes the community more visible and welcoming to new collaborators. Moving forward, I’ll be working on developing and implementing strategies for the long-term growth and sustained engagement of Social Income’s open source community. Additionally, I will continue contributing code and assisting with onboarding new developers.

After the first few months of workshop sessions, Damilola was paired with Social Income and applied the skills learned in the program’s training course to actual projects outlined by this DPG. Being passionate about this work, Damilola has continued supporting their mission even after the completion of the program.

Building on the pilot program, Damilola and his fellow community managers benefitted from an even stronger curriculum and structure this year, ensuring success for both participants and DPGs. Some highlights include:

Acceptance of six times more community managers into the cohort compared to last year.

into the cohort compared to last year GitHub-hosted workshops including “Community growth and sustainability,” “Effective communication strategies with GitHub Actions,” and “Documentation and non-code contributions”.

including “Community growth and sustainability,” “Effective communication strategies with GitHub Actions,” and “Documentation and non-code contributions” Worked on 27 projects with open source organizations like OpenFn and OpenSSP.

If you’re looking to gain skills as a community manager and are passionate about using open source for good, we’d love for you to join us! Keep an eye on our website for more information about the next cohort.

In the meantime, we have plenty of open source projects that need your support. Check out For Good First Issue to contribute to a project that’s having a positive impact in the world.

1 All quotes are from Damilola Oladele’s blog and used with permission.

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