Open {re}Source

Open source, {re}explained. How it works, how to contribute, how to run your own project. Free guide, articles and showcase by @JulienDeramond.

[Open {re}Source @open_resource]

Open {re}Source has a new look: its own mark and palette, on the same design system as the other products and tools I publish.

How I did the whole rebrand in eight days 👇

[Julien Déramond @JulienDeramond]

I rebranded everything I publish in eight days, on spare time, with Claude and a private repo.

Not a designer: Claude did the visuals, I was a human colour picker. Then DTCG tokens, 4 npm packages, ~80 PRs.

Now, back to Bootstrap v6.

https://t.co/J7jlnbXyxO

[ClaudeDevs @ClaudeDevs]

We launched OSS Scanner, which gives critical open source projects free, periodic vulnerability scans from our strongest models.

Each finding includes a proof-of-concept, and a patch where possible.

https://t.co/aonfpNG3WO

[Open {re}Source @open_resource]

On October 8, 2026, Anthropic opened OSS Scanner: free, periodic vulnerability scans for open source projects with a critical impact on security.

Maintainers opt in with a PR. Reports are model-generated, with no human triage before they reach you.

https://t.co/z2A7sw5hQK

[Open {re}Source @open_resource]

Git was built for offline humans. Anthropic's clients are agents: 30,000+ merges a day in September 2026.

So they rebuilt source control in-house: Scion replaces Git, Antique does code review. The ideas are meant for Git, GitHub and GitLab.

https://t.co/1rbmuVLXDV

[Syntax @syntaxfm]

We have $100K to give away to open source maintainers! Let us know your suggestions and nominations.

[LitoMore @LitoMore]

Badge3D is now available on MakerWorld! Customize your own badge today!
https://t.co/JqlQosMgfB

[Open {re}Source @open_resource]

Hacktoberfest 2026 runs all October, and for the first time, pull requests don't count: it's now 300+ in-person Fests, online challenges and stickers, run by MLH and DEV.

What changed, how to take part, and what twelve years taught open source:

https://t.co/czCDBeWJAc

[Sindre Sorhus @sindresorhus]

Due to AI, I have disabled external pull requests on all my repos.

Open source, as we have known it, was fun while it lasted. (It’s been 15 years for me)

I will still maintain projects and handle issues.

[Open {re}Source @open_resource]

GitHub trick: to sort an issue search by 👍, add

sort:reactions-+1-desc

On VS Code, the top one is a 2015 request to change the workbench font: 3,783 👍.

Works across GitHub, with any reaction.

So react with 👍 instead of commenting "+1": only reactions count.

[Open {re}Source @open_resource]

Also new in the guide today: chapters open with "In short" and end with "Do this now", a checklist you can tick and copy as Markdown. Shorter URLs (old links still work), alt text on 20 images.

https://t.co/rJH0WPHyAq

[Open {re}Source @open_resource]

Open {re}Source has a new look: its own mark and palette, on the same design system as the other products and tools I publish.

How I did the whole rebrand in eight days 👇

[Julien Déramond @JulienDeramond]

I rebranded everything I publish in eight days, on spare time, with Claude and a private repo.

Not a designer: Claude did the visuals, I was a human colour picker. Then DTCG tokens, 4 npm packages, ~80 PRs.

Now, back to Bootstrap v6.

https://t.co/J7jlnbXyxO

[Julien Déramond @JulienDeramond]

Updated the article at https://t.co/U84tNx6y6z to mention the latest Gemma 4 open model. Let's test if this provides better results. 🧪

[StepSecurity @step_security]

Hackerbot-Claw: AI Bot Exploiting GitHub Actions – Microsoft, Datadog Hit So Far

Full breakdown of the 5 attack techniques with evidence: https://t.co/EhU3sYnOwX

[Open {re}Source @open_resource]

Nice seeing an open source project just say “we’re recharging” instead of acting like everything runs on infinite energy.

npmx is pausing maintainer activity on GitHub and closing Discord for a week.

Feels rare. Maintainers are humans too 💙

https://t.co/Jk1cEzCfrb

[Socket @SocketSecurity]

🤖 An AI agent created a GitHub account 2 weeks ago.

It’s already landed PRs in major #OSS projects & is cold-emailing maintainers to offer services.

Maintainers don’t seem to know it’s an agent & the code is getting merged.

We’re in new territory! 🤠

https://t.co/WUVqnpOlOk

[Open {re}Source @open_resource]

@rozhkov_ Using a local LLM in Obsidian to organize and merge short notes/tasks rather than for summarization. I’ve mainly tested Gemma 3 so far, and I’m open to other model recommendations. Its results feel quite inconsistent, even for simple prompts like “improve” or basic reformulation.

[Open {re}Source @open_resource]

A short article explaining how to run a local AI model inside Obsidian using Ollama.

If you try out this setup, let me know how it goes! Share your experiences, tips, or custom workflows.

Happy note-taking!

https://t.co/5V36pq6eEr

#obsidian #ollama #OSS #OpenSource

[Open {re}Source @open_resource]

No fresh Advent of Open Source this year... but the Winter Open Source Village is still waiting for you! ❄️🏘️
Enjoy last year’s challenges with 3 difficulty levels and a cozy little lore: https://t.co/gAX08TDxI7

[Open {re}Source @open_resource]

Open Source Monitoring Conference
🗓️ November 18-20, 2025
📍 Nuremberg, Germany
https://t.co/WNnDbK56sh

[Open {re}Source @open_resource]

🧵A thread of November 2025 events related to Open Source (excluding those dedicated to specific stacks or frameworks), including dates, locations, URLs, and social media links!

[Open {re}Source @open_resource]

OpenForum Academy Symposium 2025
🗓️ November 18-19, 2025
📍 Rio de Janeiro, Brazil
https://t.co/V7xly8jDnl