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meta: fbuild build-performance burndown — round 2 (residuals from #942)

trackingUmbrella or tracking issueUmbrella or tracking issue

Status: Open.

#974 In FastLED/fbuild;

· zackees opened on Jul 5, 2026

fix(build): rebuild_signature omits build_unflags stripping → persistent recompiles for build_unflags projects

Status: Open.

#970 In FastLED/fbuild;

· zackees opened on Jul 5, 2026

perf(zccache): firmware compiles don't hit zccache cross-project even when args are workspace-relative

Status: Open.

#966 In FastLED/fbuild;

· zackees opened on Jul 5, 2026

ci(dylint): Dylint job is red on main — alias-loop workaround fails, so NO custom lints are enforced

Status: Open.

#964 In FastLED/fbuild;

· zackees opened on Jul 5, 2026

fbuild port scan misses all PJRC/Teensy (VID 16C0) serial ports + no vendor/product resolution for them

Status: Open.

#962 In FastLED/fbuild;

· zackees opened on Jul 5, 2026

build(esp32): NightDriverStrip partitions CSV rejected by esp32-core-3.3.9 gen_esp32part.py (nvs 0x2000 < 0x3000)

Status: Open.

#960 In FastLED/fbuild;

· zackees opened on Jul 5, 2026

follow up all known vids needs built in embedding

Status: Open.

#959 In FastLED/fbuild;

· zackees opened on Jul 3, 2026

perf(build): first rebuild after a cold build recompiles once (signature drift between cold and steady state)

Status: Open.

#957 In FastLED/fbuild;

· zackees opened on Jul 3, 2026

feat(deploy): manage esptool as a provisioned package instead of requiring pip install

Status: Open.

#954 In FastLED/fbuild;

· zackees opened on Jul 2, 2026

perf(packages): overlap download/extract/install in cold pioarduino-resolve (~185-237s serialized)

Status: Open.

#953 In FastLED/fbuild;

· zackees opened on Jul 2, 2026

perf(build): framework libs (~150s) recompiled per project; core cache never hydrates

Status: Open.

#952 In FastLED/fbuild;

· zackees opened on Jul 2, 2026

Multi-checkout daemon collision: two repos share port 8765, wrong-version daemon serves both (stale flags, dead-endpoint deploys)

Status: Open.

#940 In FastLED/fbuild;

· zackees opened on Jul 2, 2026