Hobbyists are using AI coding tools to rewrite the firmware on music hardware, and they’re doing it faster than anyone expected. According to a story trending on Hacker News, custom firmware for synths, samplers and grooveboxes went from rare to almost daily releases. Most of these projects credit Claude or other AI assistants for making them possible. Adding velocity sensitivity to a Korg Volca used to take weeks or months. Now hackers are turning cheap Temu synths into full grooveboxes in a few days.
🎹 What’s happening
The gear list is long. In roughly the last month, new custom firmware has appeared for:
- Elektron’s Model:Cycles, Digitone, Octatrack and Digitakt
- Roland’s SP-404 MKII, Ableton’s Push 3 and Move
- Akai’s MPC Live, MPC One and the vintage MPC 2000
- Novation’s Circuit and Arturia’s MicroFreak
- Zoom’s 14-year-old MultiStomp pedal line
The most modded device is the M-Vave FM-1, a $70 clone of the Yamaha DX7. It now has dozens of custom firmwares. Popular ones like Felucca, Sloop and x0x list Claude as a contributor on GitHub. A basic FM synth now runs virtual analog, sample playback and multitrack sequencing.
The developers’ reasons are practical. 18nelli, who started Modded Cycles, felt Elektron’s Model:Cycles was designed “just to push us to buy their more expensive gear.” It hasn’t had an official update since May 2021. Working with Claude Code, he added six-track audio over USB. The project turned into a community effort that can even convert a Model:Cycles into a Model:Samples. “I think not using LLMs would have been counterproductive,” he said.
Roman Rusinov took a 2012 Zoom MS-70CDR effects pedal and got it running NAM A2 Lite amp captures and custom impulse responses. “If you own the hardware, you should be able to do whatever you want with it,” he said.
🔍 Why it matters now
This is the clearest consumer example yet of AI coding tools making niche expertise cheap. Embedded firmware work is hard. It means reverse engineering undocumented chips, working under tight memory limits, and accepting that one mistake can brick the device. That used to keep the hobby small. AI assistants didn’t remove the difficulty, but they cut the time cost enough that a musician with a free weekend can try it.
The economics favor older and cheaper gear. Nobody minds risking a $70 synth. Abandoned products are also prime targets, because their owners have no official roadmap left to wait for.
There’s also a right-to-repair angle. Owners who were stuck with whatever features shipped can now extend the hardware themselves. That fits the wider fight over who controls the devices people buy.
⚖️ Two very different manufacturer responses
Companies are reacting in opposite ways.
- Elektron is pushing back. It banned custom firmware links from its forums, warning that “something that looks like a simple change in isolation can lead to major problems elsewhere,” especially once a new official OS ships.
- M-Vave is opening up. It announced FM1 Open, an open-source firmware with a development kit and a flashing tool for the community.
Elektron’s concerns are fair. Vibe-coded firmware usually gets far less testing than official releases. One Modded Cycles Discord shipped five updates in a single day, and its developer has since slowed down to fix bugs. Still, M-Vave’s approach looks smarter. A $70 synth with a community writing features for free can easily outlive a pricier rival that’s locked down.
🧭 What comes next
Expect this pattern well beyond music gear. Any affordable hardware with a passionate user base and a manufacturer that’s moved on is now open to AI-assisted modding: cameras, keyboards, handheld consoles, smart home devices.
For hardware companies, the strategic call is getting urgent. Banning mods costs goodwill and probably won’t stop anyone. Shipping an official SDK, documented flashing tools and clear warranty rules turns a support headache into free R&D and long-term loyalty. Ignoring it is the worst option, because the community will write the firmware anyway, just without your input.
For hobbyists, the advice is simple. Back up your stock firmware, start with gear you can afford to lose, and expect bugs. More details are available at the original source.