FLAC has a fully working dynamic economy plugin that can be customised for mods etc. I used it on one of my mods for years, worked like a dream. That was based on player supply and demand, and you can see the prices changing on a regular basis in real time.

If you want to do the same in SP, that’s not really possible but you can make the prices change with a price randomiser which works just fine

Update for SP

Price randomiser code goes like this and has to be added to every base.ini file

[BaseInfo]
nickname = Li01_03_Base
start_room = Deck
price_variance = 0.001

That will give a reasonable price variance which changes all the prices for everything on that base. Includes commodities and equipment and ship prices.

price_variance = 0.001 - gives a 0.1% difference in price
price_variance = 0.01 - gives a 1% difference in price
price_variance = 0.1 - gives a 10% difference in price