Three desktop apps out, one terminal multiplexer in

Ditch the desktop apps: run Codex, Claude Code and OpenCode CLIs side by side in Herdr. CLI-first developer running three harnesses.

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what to steal

Use one session view for all CLIs instead of one app per harness.

Our takeaway from the source, not a quote.

Drawn from this card's sourced fields. Amber = older model named by the source. Rose = cut or replaced.

paulund-herdr-cli.toml

# Ditch the desktop apps: run Codex, Claude Code and OpenCode CLIs side by side in Herdr
# source: https://paulund.co.uk/notebook/ai/why-i-use-herdr-and-the-cli

[rig]
who     = "CLI-first developer running three harnesses"
author  = "Paulund"
date    = "2026-10-05"

harness = ["Codex", "Claude Code", "OpenCode"]
models  = []

[keep]
  - Herdr shows every agent in one place
  - Runs on the same machine as the agents, reachable over SSH and from his phone
  - Sessions carry on after disconnect (agents on a VPS)
[cut]
  - Codex / Claude Code / OpenCode desktop apps
  - t3 code

thing	status	why (per source)
Codex / Claude Code / OpenCode desktop apps	replaced	Each app only runs its own harness
t3 code	dropped	Kept getting random provider-adapter errors
Diff review	kept (worse in a terminal)	He says reviewing diffs and images is harder in a terminal

Source: https://paulund.co.uk/notebook/ai/why-i-use-herdr-and-the-cli · checked 2026-10-14

One ~/.ai folder feeds every coding agent

steal → Keep shared rules, security policy and MCP list in one home folder all agents read.

Claude CodeCodexOpenCode OpenRouter Per-tool config

by sperva

~/rigs/stefancrncic-t3-three-machin….toml𝕏 · 2026-10-13

Five harnesses, three machines, one orchestrator

steal → Install several harnesses on worker machines and drive them from one place.

Claude CodeCodexCursor

by Stefan (@stefancrncic)

~/rigs/vanja-opencode-deepseek-glm.toml2026-09-16

OpenCode on DeepSeek V4.1 Flash or GLM-5.3 instead of a native seat

steal → Point your harness at a cheaper model endpoint and test it on your own tasks.

OpenCodeClaude CodeCodex DeepSeek V4.1 FlashDeepSeek V4-Pro-0813 deepseek-coder model n

by Vanja Petreski