Only posting this because it is cool in a Mr. Roger’s educational video sort of way (cool video by the way). Note @iron_yuppie had this sort of right unless you really want to put in the elbow grease, get the dilution amounts correct (math), and have the cool toys:
With proper technique and mortar/pestle (@Beyond_Beyond) you can get pretty much there (see the attention to detail here):
This guy getting a little sloppy but at least you see how the compounders do it (he skips the particle size reduction part for this API):
Any finally the Inversina mixer:
Some fun history there. Anyway, hope you get the idea and please don’t try this at home 
Here’s the breakdown if you don’t use a capsule machine:
Even gives you the math (ignores trituration which will impact bulk density of the API+excipient so important detail if you want to pass the final exam). More details here.
@studhammer Are these capsules big enough for you?