- A new open-source PCB design tool called **pcbmode** was highlighted; it is written in Python and uses JSON, SVG, and Inkscape as its workflow, prompting discussion about whether the ecosystem needs yet another PCB package.  
- **ProofPeer** was introduced as an experimental “version-control for theorem proving,” aiming to bring collaborative, Git-like workflows to formal mathematics.  
- **TellSpec**, a handheld Raman spectrometer paired with a smartphone app, was discussed as a consumer device for real-time food-ingredient analysis, with skepticism that it might still rely on crowd-sourced data entry rather than true spectroscopy.  
- **Library Genesis (libgen)** suffered an apparent outage, leading to a search for current mirrors; the fallback URL http://lib.freescienceengineering.org/ was shared, and participants debated how the project’s donation drive had failed to prevent downtime.  
- A Hacker News post on **navigating drones via eye-gesture interfaces** was circulated, pointing to emerging low-friction control schemes for UAVs.  
- The **bananaphone** VoIP-over-Tor experiment was mentioned as a potential secure communication tool worth testing.