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Add zst/zstd to SUPPORTED_EXTENSIONS so the open-file dialog offers zstd-compressed images, and add a manual-testing checklist item. The decompression itself lives in etcher-sdk (ZstdSource), which detects zstd by content sniffing, so no renderer-side validation changes are needed. Requires an etcher-sdk release that includes ZstdSource. Change-type: minor Co-Authored-By: Claude Code <noreply@anthropic.com>
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What
Adds
zst/zstdtoSUPPORTED_EXTENSIONSso.zstdimages appear inthe file-open dialog.
Decompression lives in etcher-sdk (
ZstdSource,balena-io-modules/etcher-sdk#373), which now depends on the standalone
@resadent/zstd-decompress-streampackage. This change only advertises the extensions in the GUI. Detection is
content-based (magic bytes), so no renderer-side validation changes are needed.
Testing
npm run lintclean ("No unexpected changes, all good").npx yalc add etcher-sdk.