Heroku + staking crypto?

Heroku's acceptable use policy understandably/explicitly prohibit mining cryptocurrency using Heroku: https://www.heroku.com/policy/aup ("XVI. “Mine” bitcoins and other cryptocurrencies;")

Does anyone know if Heroku can (i.e., it's technically feasible) be used for *staking* cryptocurrencies?

Previously, solutions for mining with Heroku required integration with/use of CoinHive, which no longer exists to test with. https://github.com/sfdcbrewery/MoneroHerokuApp