1) Codex $200 * 2, Claude Code $200, Muse Code $50, OpenCode $40. I run them in 6 machines (2 Linux, 2 MacOS, 2 Windows)

2) No. I try my best to use oauth

3) Claude Code + Custom Harness(set of skills) + Mod. This orchestrator (I call her as "Team Leader") orchestrates other machines with Tailscale. - I've used Claude Code (Opus 5.5) by model satisfaction and mod.

4) None

5) Dots and Instinct. Main use case is research, code search and raise issue, PR reviews.