# Key Points from #hplusroadmap IRC Discussion (August 13, 2013)

• A DIY "smell-o-vision" project was described using an array of 10-20 powdered spices, linear stepper motors ($1 each), and plastic tubing with cotton balls to prevent particulate matter while allowing aromas to be released through an air manifold.

• Documentation methods for DIY experiments were debated, with arguments against semantic mediawiki due to poor implementation and data structure issues, despite others favoring wiki interfaces for their user-friendliness.

• A DIY gene gun project was shared with comprehensive documentation (https://labitat.dk/wiki/Genegun and http://diyhpl.us/~bryan/papers2/diybio/rüdiger-trojok-gene-gun.pdf), demonstrating successful open-source biology hardware development.

• Bitcoin trading discussion revealed potential arbitrage opportunities between exchanges (Mt.Gox, BTC-e, and Bitstamp) with approximately $10 price discrepancies, with suggestions that automated market-making bots could capitalize on these differences.

• A research paper on "Repopulation of decellularized mouse heart with human induced pluripotent stem cell-derived cardiovascular progenitor cells" was shared, representing advances in regenerative medicine techniques.

• Development environment preferences were discussed, including vim learning resources, emacs features like org-mode and auctex for LaTeX document preparation, and comparisons between Cygwin and MSysGit for Windows users seeking Unix-like functionality.