The iPad is a functional and sufficient workstation in 2021. The following applications can create a slick, modern, deep learning workflow, allowing you to work from anywhere (as long as there is a WiFi connection).
By connecting your iPad to your local network through a VPN, you can use Blink to set up a Jupyter Notebook (via tmux) on your remote server (Raspberry Pi, Desktop, etc.), then use Juno Connect to access that environment. Juno Connect will handle port forwarding, making life a lot easier.
Penn State CEE PhD Student researching physics-informed machine learning