jwinterm
0aa9f03f77
Verbose log of yesterday's AAB build revealed:
java.lang.OutOfMemoryError: Java heap space
at java.util.zip.DeflaterOutputStream.write
at com.android.zipflinger.StreamSource.<init>
at com.android.builder.internal.packaging.AabFlinger$writeZip$1.call
AAB packaging streams compressed native libs through ByteArrayOutputStream
buffers. With universal-bundle (all 3 ABIs in one AAB) and parallel
ForkJoinPool workers all drawing from the same 6G heap, the peak exceeds
budget mid-zip. APK build doesn't hit this because per-ABI APKs are
packaged separately, much smaller per-file working set.
Two changes:
1) org.gradle.jvmargs: -Xmx6144M → -Xmx10240M, + MaxMetaspaceSize=1024M
(the daemon-side metaspace also creeps up over a long build).
2) org.gradle.workers.max=2 — fewer parallel workers = lower simultaneous
buffer footprint. Build still parallel, just gentler peak.
Hash Bags
Hash Bags (#) is an open-source, non-custodial, multi-currency crypto wallet for Android, iOS, macOS, Linux, and Windows. It is a fork of Cake Wallet maintained by Such Software LLC.
Why a fork?
Cake Wallet ended Wownero support in early 2026. Hash Bags exists to keep Wownero as a first-class mobile experience, run by the project's founder, while shipping a slimmer, more focused multi-coin wallet without the chains and integrations we don't want to maintain or recommend.
Supported chains
- Monero (XMR)
- Wownero (WOW)
- Bitcoin (BTC)
- Litecoin (LTC), incl. MWEB
- Bitcoin Cash (BCH)
- Dogecoin (DOGE)
- Nano (XNO)
- Ethereum (ETH) + ERC-20s
- Polygon (POL)
- Base (BASE)
- Arbitrum (ARB)
- BNB Smart Chain (BSC)
Hardware wallet support: Ledger, Trezor, BitBox.
What's different from Cake Wallet
Removed:
- Solana, Tron, Zano, Zcash, Decred (chain support disabled)
- Lightning Network (deferred — running Greenlight infra is out of scope for now)
- Cake Pay gift cards (Cake Labs–operated service)
- All direct swap-provider integrations except Trocador, which already aggregates ChangeNow, FixedFloat, LetsExchange, Exolix, StealthEx, Quantex, and ~16 others under one privacy-friendly API
Replaced or planned:
- Default Monero/Wownero/BTC node lists augmented with community nodes (don't rely on Cake Labs–operated nodes alone)
- Fiat price API replacement (Cake's API → public source) — pending
- Tor / Arti integration improvements — pending
Build instructions
The build system is unchanged from upstream Cake Wallet. See docs/ for per-platform instructions:
- Android:
docs/build_android.md - iOS:
docs/build_ios.md - macOS:
docs/build_macos.md - Linux:
docs/build_linux.md - Windows:
docs/build_windows.md
Required Flutter version is pinned in Dockerfile (currently 3.32.0) and .tool-versions. Newer Flutter SDKs (3.5+) drop the _macros pseudo-package that Cake's pinned hive_generator + build_resolvers transitively require — flutter pub get will fail until you switch to 3.32.0. If using asdf or mise, the version will be picked up automatically; otherwise:
git clone --depth 1 --branch 3.32.0 https://github.com/flutter/flutter.git ~/sdks/flutter/3.32.0
export PATH="$HOME/sdks/flutter/3.32.0/bin:$PATH"
flutter --version # confirm 3.32.0 / Dart 3.8.0
Before the first flutter pub get, you must run the prep scripts to clone external native dependencies:
./scripts/prepare_torch.sh
./scripts/prepare_moneroc.sh
./scripts/build_bitbox_flutter.sh
# Then fetch the prebuilt reown_flutter tarball (CI does this; reproduce locally
# with the URL in .github/workflows/build-linux.yml).
Then run the platform-specific configure script, e.g.:
APP_LINUX_TYPE=cakewallet ./configure_hash_wallet.sh linux
Contributing
Issues and PRs welcome at https://github.com/Such-Software/hash-wallet. See CONTRIBUTING.md for ground rules.
License
Hash Bags is distributed under the MIT License, inheriting from Cake Wallet.
Copyright (C) 2018–2023 Cake Labs LLC
Copyright (C) 2026 Such Software LLC
Cake Wallet, the Cake Wallet logo, and related marks are trademarks of Cake Labs LLC and are not used by Hash Bags.