Fighting air inequality through
open data.

OpenAQ is a nonprofit organization providing universal access to air quality data to empower a global community of changemakers to solve air inequality—the unequal access to clean air.

The Baochip-1x is an SoC with enhanced open source and security features. Fabricated in TSMC22ULL, it has a 350MHz Vexriscv RV32-IMAC CPU with Sv39 (virtual memory) support, along with 2MiB of integrated SRAM and 4MiB of integrated RRAM. RRAM is non-volatile memory analogous to FLASH.

The full part number is BAO1X2S4F-WA, but the part is referred to as the “Baochip-1x” or the “bao1x” interchangeably.

FlyDrive is a file storage library for Node.js. It provides a unified API to interact with the local file system and cloud storage solutions like S3, R2, and GCS.

Drive can be an excellent fit for applications that use cloud storage services to manage user-uploaded files. With Drive:

• You get a unified API for various storage services, including S3, R2, Digital Ocean spaces, GCS, and your local file system.
• Extensible API to add custom storage drivers.
• Unified exception handling.
• Baked-in security primitives to prevent common attacks like Path travesal.

A simulated bash environment with virtual filesystem

The self-hostable alternative to Dropbox and Google Drive. Upload, organize, and share files from your own infrastructure.

Bring your own storage — local disk, S3, R2, or Vercel Blob. One env var to switch. Full type-safe API with tRPC.

Very cool.

Next.js 16 with App Router, PostgreSQL with Drizzle ORM, tRPC for type-safe APIs, BetterAuth for authentication, and Tailwind CSS for the UI. The project uses a Turborepo monorepo with pnpm workspaces.

Oof. This Vercel-based stack is hard for me to swallow.

Multi-Store Replication

Attach multiple storage backends per workspace. Designate a primary store, fan out writable replicas for redundancy, and ingest files from read-only sources.

Neat. Almost no backup needed.

Search Inside Images & PDFs

Find files by what's in them, not just the name. Locker transcribes images and PDFs into searchable text so every document is discoverable.

Smart.

Virtual Bash Shell

Navigate your files with familiar commands. Use ls, cd, find, cat, and grep through a virtual filesystem API.

Love the idea of this, but it's not a CLI per se, it's an API you can use via tRPC.

An ESPHome external component for monitoring and controlling GE appliances — and other appliances supporting the GEA bus — via the GEA2 or GEA3 serial bus, with native Home Assistant integration.

CloudServer (formerly S3 Server) is an open-source object storage project to enable on-premises S3-based application development and data deployment choice.

Spreadsheets, forms, dashboards, python-formulas, calendars, access rules, collaboration, automations. OPEN SOURCE.

The Liberty Phone exists alongside our regular Librem 5; it’s the same freedom you’ve grown to trust with Purism products, it’s the same operating system (PureOS), the same software, and the same privacy protections built in; the Liberty Phone adds a highly controlled secure supply chain.

Real convergence means bringing your desktop computer with you wherever you go. When we talk about how we have invested in convergence with PureOS we start with the desktop OS and shrink it down to your pocket.

A whole mobile operating system experience, that is yours.

A free and open-source operating system for various devices, based on the Android mobile platform.

We’re making a statement by offering The Fairphone (Gen. 6) and Fairphone 5 with /e/OS pre-installed on our webshop.

We build desirable, open source, privacy-enabled smartphone operating systems

Because vision, audio, and text inputs share the exact same weights, you no longer need to co-tune separate frozen encoders. Downstream adapter fine-tuning (such as LoRA) or full fine-tuning naturally updates the entire multimodal token loop in a single pass.

While many AI open source model providers are pursuing larger and more powerful models, Google is still giving attention to the smaller, more local side of the market. Today, the tech giant released Gemma 4 12B, an 11.95-billion-parameter open-weights model with permissive Apache 2.0 license optimized to execute locally on a standard enterprise laptop using just 16GB of VRAM or unified memory.

Traditional multimodal systems typically utilize discrete, separate encoders to translate audio waveforms and visual data into representations that the core language model can process.

This conventional approach inherently increases both inference latency and total memory consumption.

Gemma 4 12B radically alters this pipeline by functioning entirely without these secondary encoders. Instead, visual patches and raw audio waveforms are projected directly into the core large language model's embedding space through lightweight linear layers.

The vision encoder is replaced by a 35-million-parameter module utilizing a single matrix multiplication, while the audio encoder is eliminated entirely.

For enterprise engineering teams, this unified architecture delivers distinct operational advantages: lower latency for multimodal tasks, reduced VRAM requirements (down to 16GB — typical for laptops), and the ability to fine-tune the entire multimodal system in a single, cohesive pass.

Google has ensured that Gemma 4 12B is not an isolated experiment; it is ready for production. Weights are available on Hugging Face and Kaggle, and the model integrates seamlessly with industry-standard deployment frameworks such as vLLM, SGLang, MLX, and llama.cpp.

The complete kits include a carbon-fibre QAV250 racing frame, flight controller and almost all other components needed (except battery and receiver).

This topic provides full instructions for building the kit and configuring PX4 using QGroundControl.

Collection of 3D printable components for DEXI drone builds and AVR competition kits.

With a payload capacity of up to 0.5 lbs DEXI offers a range of benefits and opens up various possibilities for both recreational and professional applications.