My linux config and rc files https://git.sommerfeld.dev/dotfiles/atom/run_onchange_after_install-copilot-node.sh?h=master 2026-05-13T12:43:40Z 2026-05-13T12:43:40Z sommerfeld sommerfeld@sommerfeld.dev 2026-05-13T12:43:40Z urn:sha1:ab8ee06cbfce42f94e07a0a694701a4df9201815 copilot-language-server emits 'HTTP 200 response does not appear to originate from GitHub' under Node 26 (the current Arch nodejs). Upstream tracking: https://github.com/zbirenbaum/copilot.lua/issues/695 https://github.com/github/copilot.vim/issues/282 https://github.com/github/copilot-language-server-release/issues/45 Workaround universally confirmed in those threads is to run the language-server under Node 24. Rather than downgrade system nodejs (used by lots of other tooling) install a private Node 24 under ~/.local/share/copilot-node/ via a chezmoi run_onchange script that verifies the official sha256, and point copilot.lua at it via copilot_node_command. Drop in once, bump NODE_VERSION when the upstream incompatibility is resolved.