Bayesian 'Power analysis' for calculating sample size with fixed N
In the 'The JASP Guidelines for Conducting and Reporting a Bayesian Analysis' it says that 'there is no Bayesian need to pre- specify sample size at all' but if you do need to plan a study with a fixed sample size what is the best means of doing so?
I'd only ever used G*Power prior to learning bayesian methods and I was pleased to have found the Stefan, Gronau, Schönbrodt & Wagenmakers Bayes Factor Design Analysis paper/app, but I'm aware this currently only specifies N for t.tests. Is there a way to calculate a fixed N for Bayesian ANOVAS with default priors? Or is G*power reliable as long as you correct specify power and effect size estimates?