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Joined 2 years ago
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Cake day: June 14th, 2023

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  • Discussion: you can have an “extinction event” in any ecosystem-- not just biological ones.

    For example, the abandonment of steam locomotives in the mid-20th-century, or the Home Computer crash of the 1980s.

    Similar to a biological mass extinction, you have:

    • A discernable ecosystem change, either a sudden event (the introduction of reliable, mass-produced diesel locomotives), or a measurable decline of “habitability factors” (as hundreds of firms brought cheap 8-bit computers to market, retail space and overall consumer interest saturated)
    • a rapid diversification of new and exotic types to fill the vacated niches (the cabless “B-unit” and flexible “road-switcher” locomotive types didn’t exist in the steam era. The post-crash computer market brought in new entrants like cheap IBM clones, the C128 and Atari 130XE, all chasing a sub-$1000 market that was now free of Sinclair, Coleco, and Texas Instruments)
    • followed by a shake out and consolidation of the survivors/winners as they select for fitness in the new world (ALCO was a strong #2 in the diesel locomotive market in 1950, but didn’t make it to 1970. The C128 never became the world-beater its predecessor did.)
    • a few niches largely untouched (China was still building steam locomotives into the 1990s. The Apple II series lasted about as long.)








  • Gamescope seems to have done a good job of taming the SNK games. Genshin… seems to have fixed itself. For a while it was in a weird state where the game worked but the launcher beeped furiously though the PC speaker, like I was sending beeps to an xterm. Now it seems fine. I do feel like this is a lot more black magic than I’m used to with Linux-- I actually had to reboot to get to a consistent behaviour-- but non-native games do tend to play fast and loose.




  • This is the firmware I’ve been working on. Basically I wrote it because at the time (early 2023) there wasn’t a “good” keyboard firmware like QMK or ZMK for the CH32V305. Now it supports keyboards, joysticks, and a rudimentary pointing device made out of a PS2-style analogue stick.

    https://gitlab.com/hakfoo1/ch32v-keyboard/-/tree/fightstick?ref_type=heads

    That branch has the mapping I used. Note this firmware has a keyboard-centric assumption that switches are wired as a matrix (between two sense lines), even if that matrix is 1x24, rather than just grounding a sense line individually.

    The stick portion was one of those “Pandora Box” devices that was built into a cabinet and pre-wired to a crappy Android TV box.

    I bought it because I figured it was probably cheaper than cutting a decent looking cabinet and buying the buttons off AliExpress. That also meant it came with a predefined cable harness to fit the Android box. In the hopes of making it tidy, and reversible, I ordered a little throwaway PCB that accepted the existing 40-pin plug and bridged it to a nanoCH32V305 breakout board. Of course, I made a design mistake, so the PCB had bodge wires, so not much was saved.

    If you’re starting from scratch, you could direct-wire to the MCU breakout board.