This is the way. I'm confused are you saying the minimum for the channel is 1m-5m sats?
Or someone is trying to charge you that many sats, to open a channel regardless of capacity.  

 Might mot be worth running a node for less than 1m sats channel even if a private node that isn’t routing. That is why Zeus node in the phone is good for smaller numbers. 

Once cashu balance is at 100k sats i move it into my zeus channel.  

 I don't have a smartphone :/