DC++ is an open source Windows client for the Direct Connect file sharing network. The DC network is a decentralized network, made up of individual servers (hubs) that users join to share files with other members on that hub. Each hub is individually run by a fellow user of the DC network, and may have certain themes to the content on the hub. Hub owners set up rules to regulate their hub as they see fit.
EasyUpload Server Accepts Images from Android to be Uploaded to a PC
...Download the server project from here: http://easyupload.sourceforge.net
The simplicity of using EasyUpload helps to avoid using Bluetooth for image transfer.
The project just works for images and later it can work with any type of files.
The sourcecode of both the client and server apps are available in this GitHub page: https://github.com/ahmedfgad/AndroidFlask
The project is documented in a Heartbeat tutorial titled "Uploading images from Android to a Python-based Flask server" available here: https://heartbeat.fritz.ai/uploading-images-from-android-to-a-python-based-flask-server-691e4092a95e
Logo image from flaticon.com by phatplus (https://www.flaticon.com/authors/phatplus)