

The used Pixel recommendation was just a short-term quick-fix until the Motorola becomes available, while still making sure to not give any money to Google. Once the Motorola is available it could go back to secondary market.
I respect if you don’t want to deal with Pixel devices at all though. Then Jolla might be the better way. If Jolla does everything you need right now I would say go for it. Maybe look up some in-depth review videos to make sure beforehand.
Played around with the PinePhone, but was not yet ready to be my daily driver ~2 years ago. Currently only GrapheneOS does everything that I need from a daily driver - exceptionally well. Which forces me to use Pixel devices. I’ll happily switch to Motorola once that’s out.

You can point the homarr iframe to a HTML file that consumes the n8n json output with JavaScript (fetch and transform data)
Even easier might be to point the iframe at the n8n endpoint but to add a HTML node as last node to your workflow. There you can use plain HTML and it directly supports the expression syntax to render the values from your previous json node.