I built an open source bipedal robot with working sim-to-real pipeline

After two years building a bipedal robot with the purpose of turning it into a pet robot companion, I decided to pivot. Bimo is now a fully open-source bipedal robotics kit designed for anyone curious about modern robotics.

I've been a huge fan of the DIY world since getting my first Arduino Kit as a kid. Twelve years later, this is my way of contributing back to the open source community.

The sim-to-real pipeline: this is the main feature that allows teaching Bimo behaviors in simulation using reinforcement learning, and deploying the model directly on the real robot. I have written a full Isaac Lab implementation to make the process easier.

Hardware: Bimo is fully FDM 3D printable to allow both, people printing their own versions and modifications, as well as printing replacements for broken parts. I have used mainly off the shelf components to keep it accessible.

By the way, for those willing to source and build completely from scratch, I would recommend JLCPCB and JLCCNC, as I have used their services to build the prototype, which turned out to be good quality and budget friendly.

Software: Bimo uses a custom PCB based on the RP2040, so it can be easily re-programmed using the Arduino IDE for example. I have also written a Python API to interface more easily with all hardware and sensors: IMU readings, servo feedback, battery levels, distance sensors, camera images, etc.

Flexibility: I made the head design in a way so that the majority of the volume is completely empty, allowing to add custom computing solutions such as SBCs, cooling options, mounting batteries, screens, etc.

All project files are on GitHub, except for the CAD and BOM, which will be released this summer, as there may be slight changes and tweaks.

What do you think about the project? I would love to get some feedback on the design and software, especially if you have had the chance to experiment with robotics kits before.

https://redd.it/1qkq1f0
@r_opensource

Open-source static dependency dashboard using SBOMs (CycloneDX) + OSV scan

I have been working on a small open-source project - a simpler way to **visualize dependencies using SBOMs** and quickly surface known vulnerabilities.

The idea is intentionally minimal:

* A **static site** that consumes SBOMs
* Visualizes direct and transitive dependencies
* Performs a **quick vulnerability lookup via** [**https://osv.dev/**](https://osv.dev/)
* No backend, no database, no credentials

Because it is a static site, it can be deployed very easily via **GitHub Pages or GitLab Pages (for free!)**, which makes it suitable for demos, internal tooling, or lightweight analysis without the need of additional infrastructure.

Current state:

* Supports **CycloneDX SBOMs** only
* Uses [**https://osv.dev/**](https://osv.dev/) for vulnerability data
* Focused on visualization and fast feedback rather than full policy enforcement

Planned next steps:

* Add **SPDX** support
* Integrate additional scanners or data sources

Repo: [https://github.com/hristiy4n/bom-view](https://github.com/hristiy4n/bom-view)

Any feedback is very welcome!:)

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

OSS Plotly Studio alternative
https://github.com/FireBird-Technologies/Auto-Dash

https://redd.it/1qkrf1e
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"Open source Windows" ReactOS is now 30 years old
https://www.neowin.net/news/open-source-windows-reactos-is-now-30-years-old

https://redd.it/1qkv8rj
@r_opensource

Microslop: An extension that converts Microsoft -> Microslop & Satya Nadella -> Slopya Nuttela
https://github.com/4O4-wasd/Microslop

https://redd.it/1qkxp02
@r_opensource

When am I ready to contribute?

Hello everyone. I am an intermediate programmer who has been programming for a few years now. I want start to contribute to open source projects, but I'm not sure if I am ready, and don't want to be act prematurely and be a hassle to maintainers. What are some signs that I could contribute? I also want to state that I do not use AI for programming.

https://redd.it/1ql1iwp
@r_opensource

Rebranding our Open-source Selfhosted P2P Social media Project to Bitsocial
https://github.com/bitsocialhq

https://redd.it/1ql7lz3
@r_opensource

Open sourced a personal finance app to build in the open with the community

Hey all,

I am super interested in building in the open with the community on a free, self-hosted, personal finance app called Sumurai that I originally made for my small business: https://github.com/TwoBitFoundry/sumurai

I've been programming over 10 years, most for small and large businesses alike, and would love the chance to build something with others and even mentor some devs newer to the field.

It's a completely free, bring your own api key experience that supports multiple users and accounts, via Teller which is a financial provider with their own terms of use and data usage policy you'd have to consent to. It works for personal or business accounts, however you'd like to use it. Supports approx. 7k banks in the USA.

I found a lot of different open sourced options out there, but a lot of them were paywalled or blocked features that made the app useless without a lot of manual labor. I made something simple and useful without needing an expensive monthly fee to use. I also plan on open sourcing a few other tools I made for other businesses as well.

Whether you like to collaborate with me or give some feedback, happy to meet you!

EDIT: Clarified that Teller is a financial provider, and to use the app you'd have to consent to their terms of service and data usage policy.

https://redd.it/1ql4vvk
@r_opensource

What business models actually work for open source projects?

Hi everyone,

I’m curious to learn from people who are maintaining or contributing to open source projects.

What business models or monetization strategies have you seen work well in real-world open source projects?

For example:

- Paid support or consulting
- Open core / dual licensing
- Sponsorships or donations
- SaaS built on top of open source
- Enterprise features or hosting

I’d love to hear concrete experiences, lessons learned, or even things that didn’t work as expected.

Thanks in advance 🙌

https://redd.it/1qla4y7
@r_opensource

Seeking GitHub issues to contribute to — Python, C++, kdb+/q

Hi all,
I’m interested in contributing to open-source projects and am happy to help with open issues.
My main languages are Python, C++, and kdb+/q.
If you have any issues that need resolving (bug fixes, small features, refactors, docs, etc.), please share a GitHub link or message me directly.

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

Deterministic password manager in Go
https://github.com/orangutangent/go-apesafe

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

Looking for an indie dev co-founder for a TUI-based AI CLI project.

Looking for an indie dev co-founder for a TUI-based AI CLI project.

I have a full written specification, UX vision, and roadmap.

Not hiring, looking for a collaborator who enjoys building tools from scratch.

Open-source friendly. Equity discussion later.

Local-First, AI Coding Agent

https://redd.it/1qlms3e
@r_opensource