2026-08-18T20:05:40Z https://njump.cloud.vinney.xyz schmidty https://njump.cloud.vinney.xyz/npub1zsu6h4pfsyt9atxv6prt64j645vlyv22jwkeh5y6mqlrxs47ex0svkk4em https://pbs.twimg.com/profile_images/2069527519523475456/-jvQBZ1r_400x400.jpg https://pbs.twimg.com/profile_images/2069527519523475456/-jvQBZ1r_400x400.jpg https://njump.cloud.vinney.xyz/nevent1qqsxxrh3hn4v6a79pskmwehywxwu0022vfz7trxmz0er3zte3dcvutqzyq2rn2759xq3vh4vengyd02kt2k3nu33f2f6mx7sntvruv6zhmye7vyqkvs Reproducing rare bugs found during fuzz testing is hard because software can run slightly differently every time. Bedrock is a hypervisor that controls that randomness, so given the same inputs a program runs identically on every execution.<br/><br/>Niklas outlines an approach and a solution, bedrock, for this problem of determinism. He focuses on the challenge of emulating time and pausing a VM at an exact instruction count, something CPUs aren&#39;t designed to do.<br/><a href="https://brink.dev/blog/2026/06/25/bedrock-deterministic-hypervisor/">https://brink.dev/blog/2026/06/25/bedrock-deterministic-hypervisor/</a><br/><br/>The result is an open source tool, bedrock: an experimental hypervisor purpose-built for deterministic software testing.<br/><a href="https://github.com/oss-garage/bedrock">https://github.com/oss-garage/bedrock</a> 2026-06-25T14:07:53Z https://njump.cloud.vinney.xyz/nevent1qqsvsgrk6nl8778v706ktfumaz9j3km94fslrvs2r777x6xssrdmtwqzyq2rn2759xq3vh4vengyd02kt2k3nu33f2f6mx7sntvruv6zhmye7ytzp7k Bitcoin Optech is now on nostr<br/><br/>npub1hkuk45c6c6h3y0rks0z4wa0wyyud5ru0qy0rn9x4dgnjwrnfy46s5a432p<br/><br/>Share for visibility 2023-06-07T11:07:09Z