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Neovim Offline Setup (Corporate Proxy)

If you're behind a corporate proxy where Mason, Treesitter, or plugin installs fail, you can pre-download everything on a machine with internet access and deploy offline.

Prerequisites

On the machine with internet access, make sure you have:

• Docker (Linux containers enabled)

Step 1: Prepare the bundle (with internet)

./scripts/nvim-offline-prepare.sh

Optionally pin Neovim to a specific tag:

NVIM_RELEASE_TAG=v0.11.6 ./scripts/nvim-offline-prepare.sh

This pre-downloads:

• All lazy.nvim plugins (git clones + build steps)
• All Mason packages (LSP servers, linters, formatters, DAP adapters)
• All Treesitter parsers (compiled .so files)

Output: scripts/nvim-offline-bundle-output/nvim-offline-bundle.tar.gz

Step 2: Install the bundle (on the proxy machine)

Transfer the tarball to your corporate machine, then run:

./scripts/nvim-offline-install.sh ./scripts/nvim-offline-bundle-output/nvim-offline-bundle.tar.gz

This extracts plugins to ~/.local/share/nvim/lazy/ and Mason packages to ~/.local/share/nvim/mason/.

Step 3: Enable offline mode

Add to your ~/.zshrc (or ~/.bashrc):

export NVIM_OFFLINE=1

Then restart your shell or run source ~/.zshrc.

What offline mode disables

Component	Behavior when NVIM_OFFLINE=1
lazy.nvim	Disables update checker, sets git timeout to 1s
Mason	Skips ensure_installed for LSP servers and tools
Treesitter	Disables auto_install for parsers
mason-nvim-dap	Disables automatic_installation for debug adapters

Re-enabling network access

To go back to normal (online) mode:

unset NVIM_OFFLINE

Or remove the export NVIM_OFFLINE=1 line from your shell profile.