Bunker Evolved
Free generative ambient firmware for the M-VAVE FM-1. Four editable layers, 64 sounds, 24 worlds, GROW, scale-based variation and an English installer and guide. Based on Felucca.
- Custom firmware
- Beta
- Medium brick risk
- Reversible
This project hasn't been claimed by its maintainer yet, so its details come from the community. Is it yours? Claim it
Bunker Evolved 1.0
Complete source now in the repository
On 18 October 2026 the full Release 1.0 source was published directly in the repository, including vendored engines, build instructions, assets, tests, website/editor sources and license notices.
Browse the complete source · Download the complete source ZIP. These links pin the published source commit for mirroring. All 506 file contents were verified against the prepared tree. The firmware binary is unchanged.
The original v1.0.0 tag was preserved and predates this source publication. Use the full source download above or the existing Bunker-Evolved-Source.zip asset, rather than the automatically generated source archives for that old tag.
Free generative ambient firmware for the M-VAVE FM-1. Four editable layers, 64 sound recipes, 24 worlds, 24 motifs, 32 scales, GROW with undo, seven EVOLVE processes and thirteen synthesis engines.
- Website, tutorial and installer
- Chrome editor
- Feature comparison and provenance
- New English introduction
- Recovery guide
Release approval
On 17 October 2026, the project owner completed Bunker → original FM-1 firmware → Bunker → original, and confirmed working audio and controls. Release 1.0 promotes that exact tested firmware without recompiling it. Its internal label remains BE 1.0-RC2 and its device identity is FM-1_7100002. Existing users of this build do not need to flash again.
This is owner acceptance on one FM-1. It does not establish power-loss recovery or compatibility with every board revision. The exact stock version string was not separately recorded; Original V15 remains the documented installer baseline.
Downloads
bunker-evolved-rc2.fwsc— the unchanged, hardware-tested Release 1.0 firmware.Bunker-Evolved-Source.zip— complete corresponding source, assets, build instructions, tests, licenses and updated documentation. Use this attached archive or the complete repository source download linked above. The automatically generated archives for the original v1.0.0 tag still contain only the initial tree.Bunker-Evolved-Publication-Kit.zip— firmware, source, English film, captions, thumbnail and release records.Bunker-Evolved-Introduction.mp4— the English walkthrough; actual C-rendered firmware screens and audio, an illustrated panel and calm AI narration.hardware-acceptance.mdandtest-status.txt— hardware report and automated test evidence.SHA256SUMS.txt— download integrity checks.
Firmware: 610,090 bytes.
SHA-256: db0b50d0ae9c3bfccee76e3b93de09fffa55389169278a0c5899dad9c79e6bb8.
Installation and recovery
Install directly from compatible original FM-1 firmware; AMB-1 is not an intermediate requirement. Back up your music before switching. Other firmware project formats are not converted, and firmware rollback does not restore overwritten music. UBOOT is a separate chip mode, not guaranteed Chrome rescue. Keep power and USB connected until completion.
The unchanged firmware retains the recorded 19-suite regression, GROW, audio/WASM, loader-model and simulated stress results. These are separate from the owner's hardware report. The release website includes an English guide and music backup/restore for compatible Bunker builds; physical music-backup/restore and interrupted-power recovery remain outside this hardware acceptance report.
Based on Felucca 1.6.1 by Leo Kuroshita / Hügelton Instruments and contributors. GPL-3.0-only with retained MIT / Apache / CC0 / font notices. Complete credits are in the attached source archive.
New website component: Editor 0.1
A modular Chrome editor adds four-track sound/parameter editing, 64 Bunker recipes, factory presets, 24 motifs, 32 scales, selected-track GROW, detailed note editing, phrase import/export and guarded phrase undo. Firmware 1.0 is unchanged.
49,337 host assertions include real requests to the C firmware handler, native parity for every sound recipe and motif, write/readback, stale undo and timeout handling. DOM interaction checks also pass. This is not a completed physical-USB or browser-layout test. The offline sketchpad is silent. Native iOS/iPadOS/macOS apps and VST/AU wrappers are future work; the modules and architecture are included in the source.
Before you start
- How hard is it?
- EasyCopy a file or use a web page. No extra software.
- What you need
- Comfort with the command line
- A computer
- Can it break my device?
- Small chance of trouble, with a way to recover.
- Can I undo it?
- Yes. You can go back to the official software.
Did it work for you?
Did Bunker Evolved v1.0.0 work on your M-VAVE FM-1?
No reports yet for v1.0.0.
One-tap reports from owners. Bricked reports are checked before they count.
Compatibility
Devices: M-VAVE FM-1.
No compatibility information yet.
Getting started
From the project's README ("Installation and storage"):
The live HTTPS installer in dist/install/ uses Web MIDI SysEx and user initiation. It verifies package size, SHA-256 and identity before writing. It supports the running FM-1 application and the compatible MIDI OTA loader, checks the final returned identity, and provides AMB-1 1.2 and a locally selected, hash-checked stock V15 package as rollback targets. An intermediate reset to AMB-1 is not required for compatible AMB/Wolf/Felucca update implementations. Owner-reported RC2 operation has passed. The owner completed the normal original-firmware round trip; physical music-backup/restore remains a separate acceptance check.
AMB/Wolf musical projects are not migrated. Bunker uses four Felucca project slots and the existing autosave mechanisms, which may replace old data. Its 114-parameter projects are not accepted by Felucca 1.6.1. Firmware rollback is not a backup. Do not erase protected boot/calibration sectors. UBOOT is distinct from the MIDI OTA loader and may require manufacturer tools; there is no unconditional Chrome recovery promise.
RC2 preserves the exact RC1 project layout (114 parameters). The tested RC1 package and its complete source remain downloadable, and the installer has an explicit RC1 rollback target. The loader model passed both directions. …
Risk and recovery
- Brick risk
- Medium
- Reversible
- Yes
- Requires opening the device
- No
From the project's README ("Installation and storage"):
The live HTTPS installer in dist/install/ uses Web MIDI SysEx and user initiation. It verifies package size, SHA-256 and identity before writing. It supports the running FM-1 application and the compatible MIDI OTA loader, checks the final returned identity, and provides AMB-1 1.2 and a locally selected, hash-checked stock V15 package as rollback targets. An intermediate reset to AMB-1 is not required for compatible AMB/Wolf/Felucca update implementations. Owner-reported RC2 operation has passed. The owner completed the normal original-firmware round trip; physical music-backup/restore remains a separate acceptance check.
AMB/Wolf musical projects are not migrated. Bunker uses four Felucca project slots and the existing autosave mechanisms, which may replace old data. Its 114-parameter projects are not accepted by Felucca 1.6.1. Firmware rollback is not a backup. Do not erase protected boot/calibration sectors. UBOOT is distinct from the MIDI OTA loader and may require manufacturer tools; there is no unconditional Chrome recovery promise.
RC2 preserves the exact RC1 project layout (114 parameters). The tested RC1 package and its complete source remain downloadable, and the installer has an explicit RC1 rollback target. The loader model passed both directions. …
Releases
| Version | Name | Released |
|---|---|---|
| v1.0.0-rc2 | Bunker Evolved 1.0 RC2Pre-release | 17 October 2026 |
| v1.0.0 | Bunker Evolved 1.0Latest | 17 October 2026 |
Credits, license and support
- License
- GPL-3.0