Mine’s not quite ‘minimal’ (I’d just use my Digitakt for that), but I do keep my setup lean.
For the kind of tracks I create I like to have:
A bass voice (dual oscillator monosynth)
Polysynth for pads
Arps and Stringy stuff (104HP 7U Eurorack, lots of variety here and where I do most sound design)
Drum machine / Sampler
Sequencer (I use an Oxi like our good man Oora above)
That gives me 4 stereo tracks on my DJ Mixer. I’d love to work up to hour long sets but more work needed to get there - that’s more on me than the gear though