Using this App, along with the server app, you can browse files and download from the device running the server app.
This app is private and secure, nothing is collected, nothing leaves your local network, the App establishes no connection other than to the server (your Mac).
Transport Layer Security (TLS) is used to encrypt any connection between by this app and the server. For more personal data, such as your file, and even the file names, an additional layer of encryption, Advanced Encryption Standard (AES) is used.