When using LEAN CLI in live mode with your broker, e.g. IBKR, one has to choose a real time data feed from a list of data feeds:

Select a data feed:

1) Interactive Brokers
2) Tradier

13) Polygon Data Feed
14) Custom data only
Is it possible to add Tiingo to this list? Or can we do it ourself? Can you share some pointers?
 I believe Tiingo is used by QC too so this should be definitely possible.