Synth Maker Elektron Bans Firmware-Mod Sharing on Its Forum, Citing AI-Assisted Hacks

TL;DR

Elektron, the Gothenburg company behind the Octatrack, Digitakt, and Machinedrum, posted a statement on its Elektronauts forum on September 16 banning the sharing of "files, tools, repositories, or instructions" for modifying its firmware, amended it a day later to cover every legacy machine, and locked the thread. On September 23 it told CDM why: a "recent surge of custom firmware modifications" on current and legacy boxes, "many of which appeared to be AI-assisted." The surge is real and countable. A GitHub search on September 24 turns up at least 11 Elektron firmware or emulator repos created this month alone, against one in May. One of them, an Octatrack emulator that adds USB audio to a 2011 sampler, says in its README that it was "built essentially entirely with Claude Code." The Monomachine mod author pulled their downloadable firmware within a day of the statement and is rewriting the project as a patcher.

What Elektron said, and then clarified

The September 16 post is short and reads like it was written by someone who once modded a drum machine themselves. Elektron says curiosity "is, after all, a pretty important part of our own early story," then draws the line: Elektronauts "isn't the place to be sharing hacks, or facilitating or promoting the modification of firmware on currently supported machines or those from preceding generations. That includes sharing, requesting, or directing people to the files, tools, repositories, or instructions needed to do so." Offending topics get removed, the same rule applies to Elektron's social channels, and it "also covers all legacy machines." General discussion stays allowed. The closing line is the one everyone quoted: "Curiosity is understandable. Bricked boxes - as we are sure people will understand - less so."

The thread was edited on September 17 with an amendment on unsupported legacy machines, then closed. It has 6,282 views, 104 likes, and zero replies, which is what a locked thread looks like. A 72-post thread titled "Monomachine and Machinedrum as VST plugins," opened September 15, was closed the same week.

The AI angle came a week later, when Peter Kirn at CDM asked Elektron to explain the IP language. The company's written answer said the statement "became a necessity in light of the recent surge of custom firmware modifications" on "both current and legacy machines," that "many of which appeared to be AI-assisted," and that "insufficiently tested firmware was being made available to users to the degree it was" while the links and tools facilitating it "were appearing on our own forum, which could give casual readers the impression that each and every one had Elektron's approval." Elektron also confirmed that the 2021 Machinedrum X firmware stays authorized and that other projects "will need to be considered separately on a case-by-case basis."

The surge, counted

"Surge" is Elektron's word, so we checked it. A GitHub repository search on September 24 for Elektron firmware, emulator, and per-machine terms (Octatrack, Monomachine, Machinedrum, Digitakt, Syntakt), filtered to repos about Elektron instruments and sorted by creation date, clusters hard: one in May, two in July, six in August, and 11 in the first 24 days of September. The search hit GitHub's unauthenticated rate limit on four of 14 queries, so treat every number here as a floor.

The projects are not toys. Roughly in order of appearance:

• ems-monomachine-firmware (created May 10, 57 stars) adds per-track lengths, speeds, and trig conditions to the 2003 Monomachine. The same author, emuyia, followed with ems-octakit (Aug 9, 26 stars), which replaces the Octatrack's 64 bank-tied Parts with 256 named Kits per project, and ems-machinedrum-firmware (Sep 11).
• elektron-firmware-tool (Jul 22, 78 stars, MIT) is the shared tool for modifying Elektron OS images; octemu vendors it as a build dependency.
• octamax (Jul 28, 52 stars) is a reverse-engineering workspace for Octatrack MKII OS 1.40C, the ColdFire CPU plus DSP56xxx audio cores, driven by headless Ghidra. It ships reversible tweaks like a readable slice-playhead view.
• octabam (Aug 7, 97 stars) is a "remixer": pick modules from several authors, including octakit and MIDI scenes, and compile them into one image from your own copy of 1.40C. Its own modules add an aux send bus with delay and an eight-line FDN reverb, a route the stock firmware never had.
• gearmulator-md-mm (Aug 26, 393 stars, GPL-3.0) is Joe Landers' fork of The Usual Suspects' Gearmulator that runs the real Machinedrum and Monomachine firmware on emulated Motorola DSP56300-family chips, as a standalone app or VST3.
• digikit (Sep 8) boots Digitakt II OS 1.16 and Digitone II OS 1.11 far enough to render the UI, with Ghidra exports and a pypcode SHARC emulator. syntakt-firmware-workbench (Sep 21) lets you put your own waves into the Syntakt's chord machine. digiemu (Sep 24) runs the mk1 Digitakt's OS 1.53 behind a clickable panel with live 48 kHz audio and has a console mode "which is what a CI job testing a custom firmware build wants."

Where the AI actually is

Elektron said "appeared to be AI-assisted," which is the careful phrasing of a company that cannot see anyone's terminal. One project removes the doubt. octemu (Sep 19) is an Octatrack emulator for macOS built from a patched QEMU (ColdFire MCF54455), the dsp56300 library for the audio cores, and SDL2 for the panel. Its point is to be a development environment for firmware customizations, and it ships three: a RECEIVE machine that mixes up to six tracks into one with p-lockable levels, USB-MIDI (the README says reverse-engineering "revealed partial support for USB-MIDI already implemented in the Octatrack firmware," and the mod completes it), and a UAC2 USB-audio interface exposing all eight tracks as 16 channels at 44.1 kHz. The acknowledgements end: "This project was built essentially entirely with Claude Code. I have de-slopped it where I could." That is the most 2026 sentence a README has ever contained.

The rest is circumstantial but consistent. Synth Anatomy, reviewing the Gearmulator fork on September 15, wrote "I think it was developed with AI, but I can't confirm or deny that." octamax and digikit both lean on headless Ghidra and generated pcode, which is exactly the tooling an agent drives well. And the timing lines up with Elektron's own account of "a noticeable increase in the number of topics on Elektronauts encouraging users to explore this on various machines."

The mechanism, briefly. Ghidra turns a firmware blob back into thousands of unnamed C-shaped functions; the slow part was always a human reading them to find the one that ticks the sequencer. An LLM with a decompiler on tap does that reading in a loop and names things as it goes. It is the difference between being handed a shredded manual and being handed a shredded manual plus an intern who never sleeps and never gets bored of the tape.

How the modders are responding

The fastest reaction came from emuyia. At 16:41 UTC on September 17, one day after Elektron's post, the Monomachine firmware README gained a notice: "In light of Elektron's updated stance on custom firmware, and to be on the side of caution, I will not be uploading my firmwares as complete syx files anymore, and will be using a patcher approach going forward." They ask users not to redistribute the old files and hope to have the patcher ready in October.

That "patcher, not binary" pattern is already the norm across the newer projects, and it is the same settlement the game-ROM world reached decades ago. octabam's README says "No firmware is distributed here; every image is derived from the user's own 1.40C on the user's machine," and proves each ported module byte-for-byte against its author's build. octamax redistributes "no Elektron binary" and cites Articles 5 and 6 of EU Directive 2009/24/EC (study a program you lawfully use; decompile for interoperability), while noting Elektron's EULA "may contain anti-RE clauses" that are a contract matter, not copyright. digiemu: "You bring the firmware. digiemu contains none of Elektron's code." The Gearmulator fork's README shouts, in bold, "DO NOT ask us for the .bin files / firmware! They're under Elektron's copyright."

None of that is what Elektron banned. It banned pointing at these repos from Elektronauts. So the repos stayed up, and GitHub, being GitHub, added four more in the week after.

What stays blessed

Elektron drew a clear exception for Machinedrum X, the community OS for the 2001 Machinedrum SPS-1 that added tonal pitch control, new LFO shapes, and new GND synthesis machines in March 2021. The X.13 release thread on Elektronauts, open since August 2021, still runs to 1,335 posts. CDM reports that developer Justin Mammarella, who also maintains the MCL MegaCommand controller firmware, confirmed Machinedrum X remains available with Elektron's blessing. The signal: a slow, tested, years-old project on a discontinued machine gets a pass, and a dozen fast projects on the current lineup get "case-by-case."

Elektron was acquired by Bonnier Capital in April, an undisclosed-sum deal that kept CEO Alexander Hellström and former owner Jonas Hillman as reinvestors. A new owner and a wave of people running your flagship's firmware in a free VST3 is not a combination that produces relaxed forum policy.

Why this matters beyond synth nerds

Kirn's closing argument in CDM is the one builders should sit with: "hacks and mods benefit from a certain amount of friction. Having to work by hand means testing what you're doing comprehensively before it even works. It limits the sheer quantity of projects and ideas." Music-gear companies "are not at the scale of Nintendo," and neither are the two or three volunteers who used to review every unofficial OS before anyone flashed it.

The friction is gone. What replaces it, on the evidence of these repos, is tooling: emulators that boot the real OS so you can test without a soldering iron or a warranty, build systems that prove a module byte-for-byte, CI hooks that run a custom firmware headless. That is the part worth copying if you are pointing an agent at any closed binary, whether it is a sampler, a router, or a car. Build the emulator first, ship diffs instead of images, and expect the vendor to notice within a month, because Elektron did.

Caveats

• The GitHub count is a floor from a partially rate-limited unauthenticated search, and it mixes flashable mods with emulators, research notes, and tooling. It excludes anything hosted off GitHub.
• "AI-assisted" is Elektron's characterization ("appeared to be"). Only octemu explicitly declares an AI tool. The Gearmulator fork's AI provenance is a reviewer's guess, not a claim by its author.
• Elektron has not announced takedowns, legal action, or changes to its EULA. The policy so far is forum moderation, and the company says general discussion remains welcome.

Key Takeaways

• Elektron banned sharing firmware-mod files, tools, repos, and instructions on Elektronauts and its social channels on September 16, extended it to all legacy machines on September 17, and locked the thread.
• Elektron told CDM the trigger was a "recent surge of custom firmware modifications," "many of which appeared to be AI-assisted," plus "insufficiently tested firmware" being distributed through its own forum.
• GitHub shows at least 11 Elektron firmware or emulator repos created in September 2026 versus one in May; the Machinedrum/Monomachine emulator fork alone has 393 stars.
• octemu, an Octatrack emulator that adds USB-MIDI and 16-channel USB audio, states it was "built essentially entirely with Claude Code."
• Modders are converging on patchers and emulators that never redistribute Elektron binaries; the Monomachine mod author pulled their .syx files within a day.
• Machinedrum X, the 2021 firmware for a discontinued machine, keeps its authorization; everything newer is "case-by-case."

Sources: Elektron statement on Elektronauts, CDM: Elektron is halting sharing of mods and hacks (with official comments), MusicRadar, Synthtopia, Synth Anatomy on the Gearmulator fork, Synthtopia on octabam, octemu README, ems-monomachine-firmware README, octabam, octamax, digiemu, gearmulator-md-mm, Elektronauts VST thread, Machinedrum X.13 thread, Synthtopia on Machinedrum X (2021), MusicRadar on the Bonnier Capital acquisition.