https://appdownload.deepl.com/windows/0install/deepl.xml
This is a Zero Install feed. If you have Zero Install on your system you can use it to run DeepL from the command-line:
0install run https://appdownload.deepl.com/windows/0install/deepl.xml
This will download a suitable implementation of DeepL (along with any dependencies) and then run it without any side effects for other software on your system.