···568568 unique (from_at, to_at)
569569 );
570570571571+ create table if not exists knot_preferences (
572572+ id integer primary key autoincrement,
573573+ user_did text not null unique,
574574+ default_knot text
575575+ );
576576+571577 create table if not exists migrations (
572578 id integer primary key autoincrement,
573579 name text unique