2026 Remote Mac CI: Mise (rtx) Toolchain Pinning, Cross-Border Plugins & Lockfile Acceptance Matrix

• Shims without lockfiles. Jobs call mise install without mise.lock.toml; plugin tarballs resolve to different patch levels across regions.
• Plugin pulls on one WAN lane. Default GitHub releases plus four parallel mise install jobs saturate APFS and trigger ETIMEDOUT on cross-border pulls.
• CI cache keyed on .tool-versions only. Restoring ~/.local/share/mise from the wrong key hides lockfile drift until xcodebuild fails.

Pick one manager per pool; avoid dual shims in PATH during migration.

Commit mise.toml and mise.lock.toml; export CI-safe paths before compile steps.

export MISE_DATA_DIR="${MISE_DATA_DIR:-$HOME/.local/share/mise}"
export MISE_CACHE_DIR="${MISE_CACHE_DIR:-$HOME/.cache/mise}"
export MISE_PARALLEL_INSTALLS="${MISE_PARALLEL_INSTALLS:-2}"
export MISE_HTTP_TIMEOUT="${MISE_HTTP_TIMEOUT:-120}"
mise trust -y
mise install --check
eval "$(mise activate bash)"

Align launchd and SSH sessions: log which mise and mise --version in every job artifact.

export MISE_PLUGIN_GIT_CLONE_DEPTH=1
export MISE_HTTP_TIMEOUT=120
export MISE_HTTP_RETRIES=4
export MISE_HTTP_RETRY_DELAY=2
export MISE_NODE_MIRROR="https://npmmirror.com/mirrors/node"

Pair with Homebrew/npm mirror guide when Node and Ruby share one runner.

# GitHub Actions (excerpt)
- uses: actions/cache@v4
  with:
    path: |
      ~/.local/share/mise
      ~/.cache/mise
    key: mise-${{ runner.os }}-arm64-${{ hashFiles('mise.lock.toml') }}
    restore-keys: |
      mise-${{ runner.os }}-arm64-

# GitLab CI (excerpt)
cache:
  key: "mise-${CI_COMMIT_REF_SLUG}-${CI_JOB_IMAGE}-${MiseLockHash}"
  paths:
    - .local/share/mise/
    - .cache/mise/

Include darwin-arm64 and runner image digest; never key only on branch name.

• Step 1 — frozen install: mise install --check must exit 0; no implicit upgrades.
• Step 2 — diff gate: git diff --exit-code mise.lock.toml against merge base.
• Step 3 — shim audit: mise exec -- ruby -v && node -v && swift --version logged to CI summary.

Same pattern as Cargo --locked gates for polyglot repos.

openclaw gateway status --json > gateway-status.json
openclaw doctor
openclaw config validate
MiseDrift=$?
jq -n \
  --arg drift "$MiseDrift" \
  --slurpfile gw gateway-status.json \
  '{mise_drift:$drift|tonumber, gateway:$gw[0]}' \
  > ci-preflight-summary.json

Post ci-preflight-summary.json to your webhook; on failure include the last 40 lines of mise install stderr. See gateway status JSON gate and sr.ht lockfile webhook matrix.

• Install Mise via official installer; pin version in mise.toml.
• Restore Actions/GitLab cache keyed on mise.lock.toml.
• Export mirror env vars; run mise install --check.
• Run lockfile drift three-step gate; archive JSON for OpenClaw.
• Proceed to xcodebuild or Fastlane only after preflight green.

mise install --check
git diff --exit-code mise.lock.toml
mise exec -- xcodebuild -scheme App -destination 'platform=iOS Simulator,name=iPhone 16'

• Mise cache warm size: budget 2–8 GB per lane on M4 NVMe; key by mise.lock.toml SHA-256.
• Cross-border plugin pull: expect 30–90 s per tool on 150 ms RTT; cap parallel installs at 2 until stable.
• Disk watermark: abort when APFS free space drops below 25 GB before plugin expansion.

Is rtx still valid? Yes—rtx is the legacy binary name; standardize on mise in new pipelines.

Migrate from asdf? Run mise en asdf once, then commit mise.lock.toml and retire ~/.asdf from cache keys.

Webhook still red after green mise? Check OpenClaw gateway JSON and port 18789; drift exit codes must map into the summary payload.

Cross-border iOS CI stays predictable when Mise pins, mirror retries, and lockfile gates share one cache story. Start on home, compare pricing, and rent an NVMe MacPull node beside your mirror region. Deep dives: Rust Cargo matrix, purchase, CI articles.