Ffsend (GitHub Repo)
Ffsend is a command-line tool that sends files via Firefox Send. It is currently still in an alpha development stage, however, it is fully featured and can upload/download, archive/extract, inspect, and stream password protected files up to 2GB over an encrypted connection. Future releases will allow users to add their Firefox account information in order to upload files that can have higher download counts and longer expiry times. Ffsend works on Windows, Linux, and Mac OS, and can be built from source for other architectures if required.
RediSQL (GitHub Repo)
RediSQL is a fast, in-memory, SQL engine. Based on Redis, it is easy to use, works with standard SQL, and can reach speeds of up to 130,000 inserts per second. Due to its speed and storage mode, it is effective in creating lightweight, temporary databases for testing. The code is stable, so RediSQL can be used as a main database with on-disk storage if desired. RediSQL has complete JSON support and is fully text-searchable. There is full documentation available and guides on using RediSQL on Python, Node.js, and Golang.