We never had a good experience with trying to utilize a database in any of our project, disregarding if it's NoSQL or SQL.
What it does
Particle devices has this utility called WebHooks, where we can make HTTP request to a specified host. Holochain application can get hosted with domain name of user's choice and be utilized by user with incoming POST requests. For example, holoapp.com/fn/zomename/someFunction will invoke the execution of the codebase in someFunction() of Holochain application, and be stored inside it's distributed hash table.
Challenges we ran into
Lack of hardware to increase the convenience.
What's next for HoHoHolo
Use this proof of concepts to further promote Holochain.