Get some privacy back

Built an open-source WebRTC P2P chat app with memory-only storage, 0 logs, 0 sign-up, with other ultra-private features.
https://ghost-chat.pages.dev/
https://github.com/Teycir/GhostChat



https://redd.it/1oy0ui8
@r_opensource

Galaxus and Opensource

Digitec Galaxus, Switzerland’s biggest online retailer explains why they’re moving away from Big Tech network solutions. Their engineering team built a fully open-source, self-hosted infrastructure (Proxmox, OpenWRT, Tailscale/Headscale) to stay flexible, avoid lock-in, and cut costs across their 30+ European locations.

https://www.digitec.ch/en/page/digitale-souveraenitaet-warum-wir-unseren-devs-mehr-vertrauen-als-big-tech-40316

Edit: I hope this is not considered offtopic, as they greatly explain why they selfhost and what opensource software they use.

https://redd.it/1oy2lyp
@r_opensource

FOSS Discord Alternative - Online Division

I'm working with a small team on a native open source Discord alternative. It's still pretty bare-bones we just introduced some small features like instant messaging & markdown messages. Check it out & maybe send some patches :)

Client repo:
https://github.com/onlinedi-vision/od-client

Website:
https://onlinedi.vision/

Github org:
https://github.com/onlinedi-vision/

https://redd.it/1oy3btm
@r_opensource

NPMScan - Malicious NPM Package Detection & Security Scanner
https://npmscan.com

https://redd.it/1oy1q7l
@r_opensource

My first github project
https://github.com/filyyy/PyPortScan

https://redd.it/1oy7zct
@r_opensource

Is there any app or software available to track any security announcement, release etc. for selected app or software?

Currently, I am managing those by individually adding a repository or forum topic to watch list. Thank you for the time.

https://redd.it/1oy7snn
@r_opensource

Open source full satellite designs

We made a list of opensource PocketQube satellite designs. A few of them have already flown to space. Might be a fun project as they are small and low cost https://www.albaorbital.com/open-source-pocketqube

https://redd.it/1oybfsx
@r_opensource

⚙️ Big Data Tools Every Engineer Should Know (Zeppelin, Superset, Metabase, Druid, Kafka)

Explore open-source Big Data tools that power real analytics pipelines — all with hands-on video tutorials 👇

📈 Visualization & Dashboards

[Apache Zeppelin – Big Data Visualization Tool](https://youtu.be/yY1TH0swtA0)
HR Analytics Dashboard in Apache Superset
[Metabase Overview & Projects](https://youtu.be/Wu6MhJyKPC4)
Install Superset using Docker
[Metabase on Docker (Hands-On)](https://youtu.be/tCCw0Fnssfw)

🐘 Data Infrastructure

Running Apache Druid on Windows
[Kafka Producer/Consumer Tutorial](https://youtu.be/Cbzk_n7KN5w)
Kafka Performance Testing

Which visualization tool do you prefer — Superset, Zeppelin, or Metabase?



https://redd.it/1oye6p2
@r_opensource

Started a series promoting interesting open source projects
https://www.youtube.com/watch?v=xp1PFqLsCMQ

https://redd.it/1oyen5i
@r_opensource

Guidance needed ! New to open source.

Hey folks, I am an undergrad who wants to start with open source. I am not much into the dev side. I mostly work with building ML models working on kaggle. How should I start with open source particularly in field of AI/ML?
Also I have heard about gsoc being a good opportunity, any help on that will also be great.

https://redd.it/1oyfis9
@r_opensource

No-Trust Protocol for Backtesting Systematic Trading Algorithms

TL;DR: Backtesting trading algorithms lacks a transparent, reproducible standard. Results can’t be reliably verified. Could a no-trust, open protocol help?


Backtesting is the foundation of systematic trading algorithms — yet there’s still no open, verifiable standard for how backtests should be recorded, structured, reproduced, or audited. Everyone seems to be using their own JSON/CSV formats. You can usually read another person’s backtest output, but you can’t reliably verify it.

I’m thinking about a no-trust protocol: a specification defining how backtests should be logged, hashed, documented, and reproduced. It’s not a product or a platform, just an open protocol anyone can implement.

Key ideas could include:

fixed, open schemas for inputs and outputs

cryptographic consistency checks

required metadata for full reproducibility

deterministic execution guidelines

fully open-source reference tools

complete auditability, zero-trust assumptions


A decentralized, peer-to-peer implementation could ensure backtest data remains publicly verifiable while avoiding central control. The protocol would need to remain neutral and non-commercial to preserve its integrity.

I’m just a beginner exploring this idea, so this is more a thought than a proposal. Does anyone know if something like this already exists?

https://redd.it/1oydfml
@r_opensource

Is there a Topaz Video Alternative for Linux

Hello! Im looking for a Topaz alternative for Linux. I already found a similar post but it's 3 years old and I think things probably changed and it was about Topaz Pictures: https://www.reddit.com/r/opensource/comments/uwm4vx/comment/iluf9lu/?utm\_source=share&utm\_medium=web3x&utm\_name=web3xcss&utm\_term=1&utm\_content=share\_button

So are there any video alternatives for linux?

Thank you!

https://redd.it/1oyi3kt
@r_opensource

The new Aider-CE fork of Aider AI Assistant is now official - Hard Fork!

Aider was and is one of the best Open Source AI coding assistants. Unfortunately the original maintainer has ignored the project he started for months now - to the point where there are now 1000+ unresolved issues and 200+ un-merged PR's on the Aider GitHub!!

A few contributors have been working on an unofficial fork for a few months now, hoping to get the changes merged in later. But recently the original creator of Aider started deleting any mention of "aider-ce" from the Aider discord. We have had to do a hard fork.

Blog post: https://www.circusscientist.com/2025/11/16/the-new-aider-ce-fork-of-aider-ai-assistant-is-now-official/

https://redd.it/1oyr3z4
@r_opensource

Big milestone reached - arkA building end to end

Big milestone reached — arkA Protocol is now fully building end-to-end!

In 48 hours we took a brand-new repo and:
• fixed dozens of npm / ESM / Rollup dependency issues
• rebuilt the entire CI/CD system (linting, schema validation, builds)
• repaired Markdown formatting across all docs
• cleaned and validated every schema & example file
• modernized the codebase for Node 18+ + ESM
• restored the reference client build

This gives arkA its first fully reproducible build pipeline.

arkA is NOT “another YouTube clone.”
It’s a content metadata protocol that any app can use to describe, index, and discover video in a fully open ecosystem.

Looking for curious devs who want to help shape an open alternative to opaque recommendation algorithms and locked-down creator platforms.

Repo here → https://github.com/baconpantsuppercut/arkA

https://redd.it/1oyrwa6
@r_opensource

A Fully Open Source Peer-to-Peer Social Protocol That Anyone Can Build Apps or Clients On Top Of
https://github.com/plebbit/plebbit-js

https://redd.it/1oysk8h
@r_opensource

EHTML — Extended HTML for Real Apps. Sharing it in case it helps someone.

Hi everyone! I’ve been working on a project called EHTML, an HTML-first approach to building dynamic pages using mostly HTML. It lets you handle things like templating, loops, conditions, data loading, reusable components, and nested forms — all without a build step or heavy JavaScript setup.

I originally built it to simplify my own workflow for small apps and prototypes, but I figured others who prefer lightweight or no-build approaches might find it useful too. It runs entirely in the browser using native ES modules and custom elements, so there’s no bundler or complex tooling involved.

If you enjoy working close to the browser or like experimenting with minimalistic web development, you might find it interesting. Just sharing in case it helps someone or sparks ideas. Cheers!


Link: https://e-html.org/

https://redd.it/1oyuvfw
@r_opensource

I got tired of js frameworks… so I wrote my own in Kotlin

Over​‍​‌‍​‍‌ a year ago I had a plan to create a web framework - because I was fed up with js/ts ecosystems and I wanted a simple, predictable, and fully Kotlin-based solution.

After a lot of the times trying and refactoring, the project is finally at a point where I think it’s ready to share.

### What it is

A minimal full-stack Kotlin web framework with:

- API routing

- HTML routing (with dynamic rendering)

- a very small mental model

- no large dependency chain

- simple setup → fast to understand

- still flexible enough for real projects

### Why I built it

Ktor and Spring may be good, but they are large ones. What they need is time to be learned, and they bring a lot of patterns that you are forced to adapt to.

I wanted to have something small, see-through, and that is easy to be understood - and also I wanted to know how internally the frameworks work instead of the usual relying-on-magic.

### If that sounds interesting, you can try it

GitHub: https://github.com/Jadiefication/Void

Jitpack: https://jitpack.io/#Jadiefication/Void

I’m not stopping until it’s perfect, and I would be super happy to have feedback from other Kotlin developers that would like to have a small but powerful alternative in the ​‍​‌‍​‍‌ecosystem.

https://redd.it/1oyxjhv
@r_opensource

looking for contributors - python library

🎨 CM-Colors: Making web accessibility easier - Looking for contributors!

[What it is](https://github.com/comfort-mode-toolkit/cm-colors/)**:** A Python library that automatically improves color contrast for WCAG compliance while preserving visual aesthetics (using perceptual color science).

**Current state:** Core library works great, now expanding with:

* 🐛 Parser improvements (good first issues available!)
* 🖥️ CLI tool for processing CSS files
* 📊 Batch processing and reporting features

**Looking for:**

* Python developers (beginner to advanced)
* CLI/UX enthusiasts
* Accessibility advocates
* Anyone interested in color science!

**Repo:** [github.com/comfort-mode-toolkit/cm-colors](http://github.com/comfort-mode-toolkit/cm-colors)

**Good first issues:** We have well-documented starter tasks with pseudocode

Check out issue #26 for a great entry point! 🚀

I know it can feel scary to make your first contribution, here are some resources to help you get started:
\- [Contribution Guide with clear steps to get started](https://github.com/comfort-mode-toolkit/cm-colors?tab=contributing-ov-file#readme)
\- [Codebase tour of cm-colors](https://gist.github.com/lalithaar/286ce89bc1d4816b3d6c862380ddc9d6)
\- [How to code when you have chosen an issue](https://comfort-mode-toolkit.github.io/wiki/code/code-how-to/)
\- [Acessibility basics in plain language and why it matters](https://comfort-mode-toolkit.github.io/wiki/accessibility-basics/)

Feel free to let me know if you have any questions

https://redd.it/1oz4wmg
@r_opensource

I Probably Made The Most Simplest Build System Ever Existed 😹 & It's Battle Tested FR
https://github.com/darkyboys/cook

https://redd.it/1oz9mzw
@r_opensource

web based e-mail-client

Hello everyone,

I’m looking for a web-based email client, as the noscript says. What I mean by that is that I want something like Thunderbird, where I can manage multiple mailboxes, identities, and calendars from different email providers.

The reason is that I have many email addresses for different purposes, and I want to bundle them across all my devices.

Thanks a lot in advance.

https://redd.it/1ozan7o
@r_opensource

Beginner looking for paid open-source issues (even small bounties) — where should I start?

Hi everyone,
I’m a fresher trying to get into open-source, but I also want to earn a little while I learn. I’ve already tried programs like Outreachy and GSoC but wasn’t selected.

Now I’m looking for something simpler:
👉 Open-source projects that offer small paid issues/bounties
👉 Beginner-friendly places to contribute and get paid as I grow

If you know any platforms, projects, or communities that regularly post paid issues even $5–$20 bounties. I’d really appreciate your suggestions.

Thanks!

https://redd.it/1oz9988
@r_opensource