- nmz787 shared the open-source optical simulator “optgeo” (Debian-packaged) as an easy entry point for DIY lens/mirror system modeling, noting it ships with many French-titled examples.  
- fenn reported that an eBay seller cancelled an erythromycin order, likely because eBay now auto-filters human-drug keywords.  
- adlai argued against 3-D-printing entire machines, citing poor repairability and the metabolic cost of denser bones, concluding high-density mutations are evolutionarily rare.  
- Multiple members discussed COVID-19 impacts: an onsite workshop was cancelled, lsneff worried about uninsured U.S. spread, and kanzure announced a preliminary paid contract to organize an open-source DIY coronavirus-vaccine project.  
- yashgaroth outlined a rough plan for a DIY vaccine without full testing, estimating reagent and GMP costs; maaku later requested a 2–3-page funding proposal for the same effort.  
- lsneff accepted a Microsoft Seattle-area internship, noting the space-industry pivot and switching to an OS team.  
- kanzure floated a Bitcoin-side-channel project—“the Eye of Bitcoin”—to tweet real-time loci of developer attention by monitoring IRC depth.  
- maaku solicited conlang collaborators for a neo-Davidsonian, unambiguous scientific grammar; kanzure suggested nsh as a possible partner.  
- fenn unearthed and shared compressed 2008–2009 #hplusroadmap IRC logs for historical archiving.