DIY Curtain rails

[angeldunk]

Reading the posts on curtains for Caravelles.
I was considering making my own system.

This looked promising INAVIS Ceiling Curtain Track

https://www.amazon.co.uk/dp/B09L7RHGBY/ref=cm_sw_r_cp_api_i_1YMC2AF17TWKM2GGCMMQ?psc=1

Anyone made their own? Any words of wisdom?