You always have the option of setting up node-red and mqtt to work with tasmota and reuse your old stuff.
Or there are some direct MQTT drivers (bypass node-red) written by community members that you might be able to adapt if you want. But coding skills are required.
Or you could try this [RELEASE] Tasmota for HE - Auto-detecting Tasmota drivers + Tasmota firmware 7.x/8.x for HE (for use with Tuya, Sonoff and other ESP devices)
It seems to be receiving some updates to latest version of tasmota, I have a few tasmota devices myself running markus' original version. I haven't tried the lastest the new maintainer has posted.
