I'm not going to say Slurm is great (its API:s are awfully inconsistent and there's a lot of code churn between versions leading to subtle behaviour changes in prod), but it's an invaluable and reliable tool. As someone who manages Slurm clusters in academic HPC as a major part of my job, I'm not at all happy to see this and quite worried that the development and maintenance of Slurm will be broken by the inevitable market volatility.