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Rust/uniffi-rs cdylib built natively on the riscv64 runner; ring falls back to its portable C implementation (no riscv64 asm) and rustls selects it over aws-lc-sys, so no cmake/perl is needed either.
luhenry
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…-dependency lmcache's common.txt hard-pins numba (used directly for cachegen/token-hash JIT kernels), and numba/llvmlite are both already parked on conda-distributed riscv64 LLVM.
luhenry
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October 14, 2026 11:34
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breez-sdk-spark0.24.1Builds the uniffi-rs cdylib behind the Breez Spark (Bitcoin/Lightning) SDK and generates its ctypes-based Python glue. Upstream publishes no riscv64 wheel.
Mirrors upstream's
publish-python.yml(build-language-bindings+build-linux-wheelsjobs).Differs from upstream
manylinux_2_39_riscv64plat tag, not upstream'smanylinux_2_31_<arch>- matches this repo's riscv64 image's glibc baseline.Matrix: cp312/cp313/cp314/cp314t only, not upstream's cp38-cp314 - no riscv64 CPython exists below this repo's default four.
Testing
.sosmoke check (upstream ships none for the Python bindings).License: OK - MIT, no vendored binaries;
ring's portable C fallback andrustls'sringprovider need no riscv64 asm, cmake or perl.No local rehearsal (disk-constrained host); relying on CI's riscv64 runner.