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README.md

ETAF Playground

The Playground exposes one canonical product example: the examples/research-shelf.etaf and examples/research-shelf.el pair.

The .etaf file is inert, validated structural composition data. The same- basename companion owns Components, state, theme, storage, events, and lifecycle. etaf-playground.el is a reusable pair framework: it owns only registration, safe loading, mounting, reset, close, and verification entry points. etaf-playground-catalog.el is the replaceable deployment catalog; business Components, database schemas, palettes, refs, and handlers must stay in the companion. Compose and reuse public ETAF/etaf-ui contracts before adding abstractions.

Run make check EMACS=/Applications/Emacs.app/Contents/MacOS/Emacs. Run make perf for the 1413×62 warm row-selection/theme latency gate.

The example installs a deterministic 256-record SQLite fixture with 12 records per page. Bind etaf-research-shelf-fixture-size and etaf-research-shelf-page-size for smaller tests or larger pressure runs. In the UI, activate Rows N ✎ to enter any value from 1 through 100. The workspace is one responsive wrapping Flex composition: three columns when wide, rail/list plus wrapped detail at medium widths, and vertical when narrow.