nosql key/value on sqlite
https://github.com/kujirahand/node-sqlite-kvs/blob/master/lib/sqlite-kvs.js https://github.com/lukechilds/keyv/blob/master/src/index.js
https://github.com/kujirahand/node-sqlite-kvs/blob/master/lib/sqlite-kvs.js https://github.com/lukechilds/keyv/blob/master/src/index.js