Posts

Guides, benchmarks, and updates from Celesto.

• Cut Rust Compile Time by 36% on CI with Celesto

  18 Oct, 2026

  8 min read

  Celesto cut median Rust release compile time from 18.14 to 11.60 seconds on matched 4-vCPU CI runners. Inspect the controls and run the public fixture.

• Celesto CI vs. GitHub: Faster Cache-Hit Jobs on Half the CPUs

  16 Oct, 2026

  13 min read

  A faster GitHub Actions runner for cache-hit jobs: Celesto CI took 24 seconds on 1 vCPU versus GitHub-hosted's 31 seconds on 2 vCPUs in our benchmark.

• Give Claude Code, Codex, and Hermes a Celesto Cloud Computer

  Updated:9 Oct, 2026

  3 min read

  Connect Claude Code, Codex, Hermes Agent, or another MCP client to Celesto. List, create, start, stop, and use cloud computers from your agent.

• Can Docker Safely Run AI Agents? Containers vs. MicroVMs

  Updated:13 Sep, 2026

  11 min read

  Docker protects trusted workloads, but containers share the host kernel. Compare Docker and microVM boundaries for untrusted AI agent code.