There was a Covid outbreak at a school near where I live.
A lot of the teachers at that school had to isolate. Added to that were the staff who hadn’t returned to school because they’re unvaccinated. This created a drain on the pool of casual teachers in the local area.
I work for LearnFast but I like to keep my hand in by doing a little casual teaching work for the department. So when all the casual teachers in my area were covering the Covid affected classes, I got a call from my old school which is also close to where I live.