The install.ps1 sibling of installer-script-e2e.sh: stage serve.git
(main parked at OLD, GIT_CONFIG_GLOBAL insteadOf redirect - NOT env
config, which install.ps1 clobbers), run the install.ps1 shipped AT
the OLD ref headless (-SkipSetup -HermesHome/-InstallDir explicit
because the oldest tags predate the HERMES_HOME env override;
-NonInteractive probed from the ref's own script text), assert the
checkout + venv hermes.exe, advance served main, update via
hermes-update (--yes probed) or HEAD's install.ps1, assert HEAD.
install-e2e-windows-run.yml grows a second job for the arm: the
installer-script x {hermes-update, installer-script} pairs flip from
grey to live, app-update from a script install stays a declared TODO.
PS 5.1-safe pure ASCII.
Stage logic verified behaviorally under pwsh (redirect resolves the
canonical URL to serve.git at OLD, per-ref install.ps1 extraction
parses, advance lands HEAD); the install legs themselves need a real
Windows runner - dispatched next.
ethernet
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