Montevideo adds another layer of indirection to the problem we encountered in Whitehorse. The device is still vulnerable to overflow, but we can’t just encode whatever we want!NCC Group hosts an embedded security CTF game at microcorruption.com. I’m not much of an expert in embedded anything, but the game is quite a bit of fun. I completed the first few levels a few days ago, so this is post-facto write-up, but I intend to write an article as I go for future levels.The way we, as an industry, interview prospective individual contributors is exhausting and ineffective. The goal of these interviews is to hire engineers who can design and implement simple, maintainable software, so why are we asking them contrived questions about dynamic programming? Engineers ought to be at least competent programmers, but the work of software engineering is more often a question of design.At home, I run a server rack and a hefty desktop computer, not to mention a kegerator. This likely represents a significant amount of my power usage. The problem is, that’s a guess; I don’t actually know how much power they’re drawing. To remedy this, I spent some time working with IoT plugs, prometheus, and grafana to set up real-time power monitoring.The kegerator has a new gas line and we’re ready to get started installing some sensors. The goal with these sensors is to keep track of how much seltzer I’ve got left and how long it takes the fridge to cool down kegs that have been refilled with room-temperature water.