The Behmor 1600 Plus is one of the most popular home roasting solutions out there because it can roast a pound of coffee and only costs $369. I personally roast 1/2lb batches because I find that to be the sweet spot of the Behmor 1600 Plus. I like my roasts to not go longer than 14 minutes.
Here’s a video I did showing a roast profile I like for beans destined for cold brew.