It's a game warrior who'd take on this assignment.
Only a fool ignorant of history would ever develop an app for the Bennelong Point Lunatic Asylum, moreover to do so for only $4000 would guarantee to certify him as an inmate.
As its great architect Jørn Utzon found from bitter experience, the SOH has been a hotbed of intrigue, managerial incompetence, government bungling and interference from the moment Joe Cahill, the then premier of NSW, first championed the idea of a opera house for Sydney way back in 1954, some 20 years before the building opened.
As many who have worked for, provided services, or been closely associated with the SOH will attest, this institution has multiple masters all of whom wield considerable sway. These include the general manager and managerial staff, the SOH Trust as well as the government of the day and its Arts Minister not to mention the Ministry and various other levels of bureaucracy. Then there's the hiring companies who also wield very considerable political power, the Australian Opera, Aust. Ballet et al.
The SOH has been a political hot potato for nearly the past 60 years. Risk battle, and as with many before you, you'll likely end up being another of the many 'corpses' found littering the Sydney landscape.
Naive IT techies be warned, you go there at your peril: technology—especially IT, government bureaucracy and the Arts Mafia have long proven to be an explosive mixture. Get involved in this project then at the first hint of a problem you'll be left carrying the can—patents, IP, litigation, everything. 'Tisn't worth being toast for utter pittance. ...And forget kudos, there won't be any.
Leave the performing arts to the few politically savvy hiring companies, not only are they world-class but also they've proven capable of surviving the bureaucracy.