Data-table core for Koncept UI — column filters, aggregations, CSV escaping, cell-to-text. Framework-free TypeScript, zero runtime dependencies.

Translation contract and base dictionaries (EN, PL) for Koncept UI — shared by the Angular and React ports. Pure TypeScript, zero runtime dependencies.

Map core for Koncept UI — projection and bounds maths, marker clustering, opening hours, marker markup, plus the Leaflet and Google engine adapters. Framework-free TypeScript, zero runtime dependencies.

Chart geometry core for Koncept UI — scales, line and area paths, bar layout, pie and radar geometry. Framework-free TypeScript, zero runtime dependencies.

Chat core for Koncept UI — message grouping, day separators, date-label kinds and send-status arithmetic. Framework-free TypeScript, zero runtime dependencies.

Animated backdrop core for Koncept UI — canvas renderers plus the maths behind two effects: a density-ramped grid of squares and a flowing current of light with an OKLCH colour ramp. Framework-free TypeScript, zero runtime dependencies.

Mention core for Koncept UI — parsing @mentions in text, the active query at the caret and diacritics-insensitive matching. Framework-free TypeScript, zero runtime dependencies.