Did you have to build it yourself or can you buy them preassembled now?
You can buy it pre assembled. Check out rokland https://store.rokland.com/pages/meshtastic-hardware-rak-lilygo
The Nano G2 Ultra is a nice pre-assembled but still geeky device. It works off-shelf with power from USB, but you can easily add the recommended battery. https://wiki.uniteng.com/en/meshtastic/nano-g2-ultra