Air carrier Captain reported a loss of nose wheel steering due to hydraulic leak and the aircraft had to be towed to the gate.

Narrative

Normal flight from ZZZ-ZZZ1. Hand flown approach and uneventful landing on XXL at ZZZ1. Upon taxi in; on taxi 1; nose wheel steering became ineffective. Aircraft was brought to a stop on the taxiway centerline. A moment later; several fault annunciations illuminated (FLT CONT; HYD) indicating a hydraulic problem. ATC ground was notified of the situation. Cockpit indication was 0% quantity in syst A. A checklist was actioned. Maintenance and operations were contacted. A joint decision was made for a tow-in. Engines were shutdown. Flight attendants and customers were notified. Passengers were kept informed through out process and allowed to use restroom. ZZZ1 personal from airport rescue and firefighting (ARFF) and operations approached aircraft and confirmed hydraulic leak near #1 (left) engine. No further threats. After maintenance team assessed aircraft; aircraft was towed in to gate XX. Arrival at gate was approximately 60 minutes after landing. Chief pilot; Dispatch and maintenance control were also contacted.