[npp1993]

• What was wrong or hard: three things nothing in the guides said, met while building Improved AMP (Improved AMP 0.1.0-experimental (Analog Rytm MKII, OS 1.74) #1419). A documentation edit in a module folder changes the build's source fingerprint, so an import record's runtimeSourceSha256 goes out of date although the exported package is the same file. scripts/package-elemod-recipe.mjs stops with EEXIST when the package is already there, which reads like a failure of the rebuild. And nothing told a Rytm module author how OS 1.74 queues trigs: a module that looks ahead at a track's next trig and reads one slot misses swung and micro-timed trigs.
• What this changes: docs/ELEMOD_SOURCE_BUILDS.md ("Source-only release objects") says the exporter never overwrites and that --check confirms an unchanged export, and that the fingerprint hashes every file in the module folder, documents included, with what to do about the import record. sdk/machines/analog-rytm-mkii/README.md gains "Queued trigs: looking ahead": three event slots a track, one event a track a block, what is queued but not played, which sound a queued trig will play, and that retrigs are not queued. Addresses only, no stock code.
• How I checked it: npm run pr:ready says Ready (the documentation check passes). The fingerprint's inventory is inventory in scripts/build-elemod-packages.mjs; no script reads runtimeSourceSha256 (git grep). The queue facts are the ones Improved AMP's src/pre-fade.c was written from and its TESTING.md records in rytm-emu and on a unit.
• What the guides lacked or got wrong, and where I fixed it: the three points above, in the two files named.

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