made it work with macOS + UTM + Ubuntu 18.04.6 LTS (Bionic Beaver)

[rtauler]

I successfully flashed two Teckin SP22 with tasmota firmware with tuya convert using a Macbook Pro 2015 (Intel):

What I used

• Macbook Pro 2015 (Intel)
• UTM Version 4.5.4 (100)
• Ubuntu 18.04.6 LTS (Bionic Beaver) (installed as a VM, not try/demo mode)
• D-Link DWA-121A1 Adapter
• LG K11 (Android mobile phone)

Some comments

• Used default VM config in UTM.
• I had to manually fix a DNS issue with ububtu (add them as "nameserver x.x.x.x" /etc/resolv.conf, I used google 8.8.8.8 and 4.4.4.4) if not, apt install didn't work.
• Do the regular installation recommended in this repository
• I had to manually install "python3 cryptodome" as it gave an error during the flashing process.

Very happy with result, once I configured the devices to the wifi I changed the module type to "BlitzWolf SHP" as this is the same as the Teckin SP22.

Once everything was set up I proceed to update the firmware without any issues, very, very happy with the result.

Hope this helps someone!