You should look up portable monitors. They are crazy small, cheap and good nowadays. You can get a 15-16" OLED external display with a battery for around 300 w

You should look up portable monitors. They are crazy small, cheap and good nowadays. You can get a 15-16" OLED external display with a battery for around 300 western monetary units. Half that if you stick to IPS panels[0]. You can shove one of those in a backpack easily. [0] https://www.amazon.de/-/en/Portable-Monitor-Connection-Raspberry-Protective/dp/B0912MF6WD/ref=sr_1_4 https://www.amazon.de/-/en/Portable-Monitor-Connection-Raspb...