Half calcium carbonate, half potassium carbonate as pH up for when the beneficials drive the pH down. I’ll have to try that if I’m feeling froggy in the spring.
@Torgull Compost seems messy. You’re going to pull the solids out somehow. (Shameless plug) Why not use a soluble source of humus and micronutrients in a product like AGT-50 fulvic mineral complex?