I've found it easier to write my own PRNG than to use the std. Using the std PRNG is about as buggy as my implementation, so the trade-off is reasonable. I usua

I've found it easier to write my own PRNG than to use the std. Using the std PRNG is about as buggy as my implementation, so the trade-off is reasonable. I usually need non-cryptographically strong PRNGs, so xorshift128+ is sufficient.