# Key Points from #hplusroadmap IRC Discussions

• Participants discussed modular construction using shipping containers, noting costs of $1,500-2,000 USD per container with potential NPO tax write-offs, with Neal Stephenson's "Snow Crash" recommended for its depiction of container housing.

• Kanzure shared development of a wrapper for cal3d (3D character animation library) with installation notes available at http://adl.serveftp.org/~bryan/pycal3d/.

• Detailed technical discussion about DIY audio amplifier design focused on selecting appropriate op-amps for portable headphone amplifiers, with specific warnings about ceramic capacitors being problematic in audio signal paths due to temperature sensitivity and microphonic properties.

• Participants shared audio circuit design resources, including an article about input capacitor selection (http://tangentsoft.net/audio/input-cap.html), and debated technical specifications regarding buffer performance under different loads.

• MIT's Fab Lab vocational tech school (http://fab.cba.mit.edu/academy/about/) was mentioned as a resource for learning digital fabrication skills.

• The group discussed software decompilation techniques for applications without available source code, including running .NET applications on Linux using Mono.

• Speculation occurred about HERF (High Energy Radio Frequency) guns and their potential proliferation if EEStor capacitor technology becomes publicly available.