K let's figure this filecoin thing out.  5:53 EST.
   Filecoin's reference client is called "lotus" and it's written in go.
   lotus
   installation: [1]https://docs.filecoin.io/get-started/lotus/installatio
   n/
   -> it says you can run in the cloud for $100 credit.  I did not receive
   a credit when I tried this.  The user-experience involves handling
   fewer crashes with more ram and disk, which gets expensive quickly.
   There is a bug in the digitalocean image where it download the chain
   from a web source every reboot.  I submitted information on fixing the
   bug to their github and am not aware of having received a reply. 5:57a
   Data storage
   tutorial: [2]https://docs.filecoin.io/get-started/store-and-retrieve/st
   ore-data/
   This talks about cli usage but does not indicate remote nodes.
   Eureka: I think lotus (maybe it was another node app?) has a
   lightweight mode already built in.
   Subgoal:  see if lotus has a lightweight, remote-use mode.  Finding
   discussion of this is likely to find at least one remote-use node.

References

   1. https://docs.filecoin.io/get-started/lotus/installation/
   2. https://docs.filecoin.io/get-started/store-and-retrieve/store-data/