Opus 2.0 beta 3.1 (build 4)

Opus 2 is a firmware mod for the original Teenage Engineering OP-1 on firmware #246 (not the OP-1 field). Its
small core loads plugins: .opmod files you copy into a mods folder on the OP-1's USB disk.

Beta 3.1 is a fix for anyone coming from Hundekraft 3.0.3. Only the core changed: the plugins, the starter
pack, the bridge and the plugin kit are beta 3's (attached here again, the same files). It has run in an emulator
with the OP-1's own firmware and on my own OP-1.

Fixed

• Opus 2 wouldn't start on an OP-1 with more than 100 of your own synth presets, such as one that ran
  Hundekraft 3.0.3 (it allows 300, and its preset pack alone has 152): every start stopped at Opus's crash page.
  Opus 2 now takes up to 300 of your own synth presets, as Hundekraft does, and saving goes up to 300 too.

Get it

Make the update again on https://opus-op1.pages.dev/patcher/ from your own copy of TE's op1_246.op1. It runs
in your browser and nothing is uploaded. Install it through the OP-1's update mode: switch it off, hold COM while
switching it on, press 1, copy the file onto the "OP-1" disk and eject it. Never choose 7 or 8 there, they erase
your sounds and tape. This works on an OP-1 stuck at the crash page too: update mode is TE's own and always there.

Your plugins stay as they are. New to Opus 2: the starter pack and the bridge are below, and the steps are in
beta 3's notes and on the site.

Target	the original OP-1, firmware #246 only
The update	op1_246_opus2.op1, 13,161,829 bytes
Its SHA-256	a41c9f2486ac7c289c1f934076435adad4cf534b6564376aa6b43b69d7a5aee5
Made from	TE's op1_246.op1, SHA-256 c5315218f825f143b415ca554516541898abee843d3a236df0b54c04e1fb13a9
The starter pack	opus2-starter-pack.zip (beta 3's), 21 plugins, SHA-256 957d0972b9b5492c0b70bf79b630d82685daa89f2140bce8aaeecdf1f0ca358e
The bridge	bridge.opmod 0.9.0 (beta 3's), SHA-256 155bb7c50cbc38bb97ef14eb9869a5664117c50f615c73c73c0959ff2e1d8afd

Every file's SHA-256 is in SHA256SUMS.txt. Everything that changed: https://opus-op1.pages.dev/changes/

Known issues

Beta 3's: beta 3's notes.

Going back

te-boot, the OP-1's own updater and recovery, is never touched, so the way back is always there. To stock or
another firmware: Opus's menu, T1 (system), the cleaner: turn green to "at restart", then switch the OP-1 off and
on, and install the other firmware through update mode as above (stock is TE's op1_246.op1). To Opus 1: just
install it.

Licence

The plugins are © LizardMan, free to use and share. Their source is not published yet, apart from the plugin kit's
four examples (GPL-3.0). dx contains code derived from Google's Music Synthesizer for Android (Apache License 2.0):
its LICENSE and NOTICE are in the zip's licenses/opus.dx/ folder. The core's update file and the patcher's data
are all rights reserved: please don't share them, link to the site instead.

Opus is an independent project and is not affiliated with, endorsed by or supported by Teenage Engineering. OP-1 is
a trademark of Teenage Engineering AB. Modifying firmware is at your own risk.

Found a bug? Report it here, with your build
(hold help on Opus's menu) and the plugins in your mods folder.