SQLite 3.53.3 amalgamation

SQLite 3.53.3 amalgamation, built from sqlite/sqlite tag version-3.53.3 with ./configure && make sqlite3.c shell.c on ubuntu-latest.

SQLITE_SOURCE_ID: 2026-06-26 20:14:12 d4c0e51e4aeb96955b99185ab9cde75c339e2c29c3f3f12428d364a10d782c62

sqlite-amalgamation-3530300.zip matches the sqlite.org download layout (sqlite3.c, sqlite3.h, shell.c, sqlite3ext.h); the same four files are also attached individually, plus sha256sums.txt.