Be sure you don’t need to spend much. Textile pots are quite cheap and works perfectly.
Also you don’t need all the fancy nutrients. Homemade compost works well if you prepare it right, ie: it needs to be « varied » with a proper mix of « green » and « brown » and also reinforced in some areas. Adding rest of fish, or shrimps heads is know to boost potassium for ex.. Eggs or oyster shells will boost calcium.
You can then use that compost in your substrate, but you should be careful not to enrich it too much or you risk to burn young plants. You must also ensure the soil drains water properly, for example by adding perlite to it: again roots can not breath if they are underwater or substrate is too heavy.
You will likely want to help your babies a bit during flowering and there are dedicated commercial nutrients for that.
Last bu no least: no matter if you use commercial or homemade substrate and nutrients: you must control pH! Or your babies won’t be able to absorb nutrients.
this is the minimal kit I recommend to growers, indoor or outdoor:
- textile pots
- A reliable pH reader (I’m using a Milwaukee)
- PH-up and down
- CalMag, because it’s the most common deficiency and you don’t want to run around when it happens
With this kit, your normally set to provide proper base conditions to your plants beyond light and proper temperatures.
I wrote some hints for beginners here, they may help you: Conseils aux débutants