UK-based Australian working remotely for an Australian company

Hello, I recently moved over to London on the 27/08/2023 and have been working remotely for an Australian company since the 01/09/2023. It has now come time to do my tax and I am slightly confused on how the process works. I know I must determine my tax residency and complete both a UK self assessment return as well as file my Australian tax return. From what I can tell, I will be classed as a UK tax resident due to the 183 days test. Does this mean I should do my Australian tax return saying I'm not an Australian tax resident? Or could it also mean my residency status changes after those 183 days and I may be considered a tax resident in both places? Any advice is helpful, thanks.

Hi,
HMRC cannot advise you on your residence or the completion of another countries tax returns.
Please refer to Tax on foreign income 
Thank you.