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flowrs-engine/crates/flowrs-boards/PROVENANCE.md
flowRS fd958c0547 flowRS engine, cut from flowRS 3451b065 
Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-11-02 19:04:39 -05:00

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Provenance of flowrs-boards

The ESP8266 ROM erase size

Until 2026-10-27, src/esp8266_rom.rs held the erase size the ESP8266 ROM loader must be given in FLASH_BEGIN. It was a transcription of ESP8266ROM.get_erase_size in esptool.py (GPL-2.0-or-later). flowRS kept it out of the crates it publishes, but the browser flasher still compiled it into the IDE.

Commit e4a336ba removed it. The rule was rewritten clean-room and now lives in flowrs-transport, the published crate that speaks the protocol it belongs to: flowrs_transport::esptool::esp8266_rom::erase_size. The record of what the rewrite consulted, with licences, how esptool.py was used as a black-box oracle, and how the result was verified is in crates/flowrs-transport/PROVENANCE.md.