My linux config and rc files https://git.sommerfeld.dev/dotfiles/atom/dot_config/zsh/dot_zshrc?h=master 2026-06-05T10:06:04Z 2026-06-05T10:06:04Z sommerfeld sommerfeld@sommerfeld.dev 2026-06-05T10:06:04Z urn:sha1:929f8bea128361822b054db36402b5e19234319f 2026-05-22T09:41:24Z sommerfeld sommerfeld@sommerfeld.dev 2026-05-22T09:41:24Z urn:sha1:982d180f9b9a2f8a90d454816474dce8d4b4b8e2 Previously every new login retargeted ~/.ssh/agent.sock to its own per-connection forwarded socket. That broke a multi-connection setup when the most-recent connection (which 'won' the symlink) dropped: all surviving connections' panes would point at a dead socket until a fresh login from a surviving connection re-ran zprofile. zprofile: only retarget when the existing symlink target is dead (sshd unlinks the per-connection socket on disconnect, so [[ -S ]] on the resolved path is a reliable liveness probe). First connection seeds the symlink, subsequent logins keep using it. ssh-agent-refresh: scan /tmp/ssh-*/agent.* for any live forwarded socket and retarget to the first that responds to ssh-add. Lets the surviving connection recover without waiting for a new login shell. 2026-05-22T09:41:24Z sommerfeld sommerfeld@sommerfeld.dev 2026-05-22T09:41:24Z urn:sha1:6b7e057bd4fc2cbdffe5fc8b3095810db1ccf9e3 Switching to nix's zsh on the Arch host left two functional gaps the Arch zsh package used to fill: 1. /usr/share/zsh/site-functions in fpath: pacman, paru, systemctl, journalctl, flatpak, docker, kubectl, makepkg etc. drop their completions there. nix zsh's compiled-in fpath doesn't include /usr/share so we lose all of them silently. Added that path (and vendor-completions for the VM's apt-installed completions) to the existing fpath loop, guarded by [[ -d ]]. 2. HELPDIR for the run-help / help-alias machinery: needed so 'help cd' etc. find the per-builtin help docs. Pick the first existing version dir, preferring nix-profile so it matches the running zsh version. 2026-05-22T09:41:23Z sommerfeld sommerfeld@sommerfeld.dev 2026-05-22T09:41:23Z urn:sha1:159d69ddd122cfdb55d087d754d7472d42fa73ae Forwarded SSH_AUTH_SOCK lives at /tmp/ssh-XXX/agent.NNN — a per-connection path that disappears on disconnect, leaving every long-running zellij pane (and its children: claude-code, nvim, …) pointing at a dead socket. Reattaching after reconnect doesn't help: the env was captured when zellij first started. Fix: maintain ~/.ssh/agent.sock as a symlink, re-aimed at the live forwarded socket on every login (zprofile). Export the stable path so processes inherit a value that survives reconnects — git fetch / commit signing keep working in re-attached zellij panes with zero per-pane re-export. Adds 'ssh-agent-refresh' helper for transitional panes still holding the dead per-connection path: re-exports SSH_AUTH_SOCK to the stable symlink and validates with ssh-add -l. Already-running children (claude-code) must still be restarted since env is inherited, not observed. 2026-05-22T09:41:21Z sommerfeld sommerfeld@sommerfeld.dev 2026-05-22T09:41:21Z urn:sha1:7212ed8f2e355856b456b0c83e8a1ebe5a62d71d Promote pacopt from a plain alias to a function. In addition to listing packages that remain installed solely as someone's optional dependency, each package is now annotated with its parent(s) and the upstream reason text from the parent's Optional Deps field. Implementation is pacman-only (no expac): one awk pass over 'pacman -Qi' builds a reverse index of every (parent, optdep, reason) edge in the local DB, then per leaf package the index is filtered for matching deps. 2026-05-20T12:56:12Z sommerfeld sommerfeld@sommerfeld.dev 2026-05-20T12:56:12Z urn:sha1:3ee1769ac0f5618da3d3346ff5dd70c07c11b0fe host.nix reads HOME/USER via builtins.getEnv, which returns "" under pure-eval (nix run's default). just-nix-switch already passes --impure; match it here. 2026-05-20T12:56:12Z sommerfeld sommerfeld@sommerfeld.dev 2026-05-20T12:56:12Z urn:sha1:a41bcc4cd9cddde9e03cc99b2a57e6356e062d8d The standalone 'home-manager' command defaults to the legacy ~/.config/home-manager/home.nix and errors out for flake users. The wrapper auto-selects the host/vm profile by /etc/os-release ID and points at whichever dotfiles checkout exists on the machine. Usage: hm news hm switch hm generations 2026-05-20T12:56:09Z sommerfeld sommerfeld@sommerfeld.dev 2026-05-20T12:56:09Z urn:sha1:2d9ed00606be2f8c63aba719d00adf70fe6d4393 LSPs, formatters, linters, and the lldb-dap debugger now come from ~/.nix-profile/bin (see nix/common.nix). lspconfig keeps the default configs; we just opt-in via vim.lsp.enable() with an explicit list. Changes: - dot_config/nvim/lua/plugins/lsp.lua: drop mason*, replace mason-lspconfig handler with explicit vim.lsp.enable({...}); drop groovy/jenkins formatters and lint entries; drop systemd lint (nginx + groovy + systemdlint tools dropped per plan). - dot_config/nvim/lua/plugins/debug.lua: drop mason-nvim-dap; drop codelldb adapter; switch dap.configurations.cpp to type='lldb' (lldb-dap is the upstream successor, ships with pkgs.lldb). - dot_config/nvim/init.lua: remove mason.nvim, mason-lspconfig.nvim, mason-tool-installer.nvim, mason-nvim-dap.nvim from vim.pack.add. - dot_config/nvim/lua/config/update.lua: remove MasonToolsUpdateSync. - dot_config/zsh/dot_zshrc: flip plugin source order — prefer ~/.nix-profile/share, fall back to /usr/share/zsh (was the other way around). - nix/bootstrap.sh: drop the uv-python3.11 step (no longer needed once Mason no longer source-builds Python LSPs on Ubuntu 20.04). Phase 6 of the nix-on-host migration plan. 2026-05-20T12:56:09Z sommerfeld sommerfeld@sommerfeld.dev 2026-05-20T12:56:09Z urn:sha1:de5146c7976e1fb38e8d1f82c30544462d881100 Restructures the Home-Manager profile to support both the Arch host and the Ubuntu remote-dev VM from the same flake. - remote-dev/ → nix/ (hard rename; .chezmoiignore updated) - home.nix split into common.nix (shared), vm.nix (Mason runtime carve-outs + podman stack), host.nix (gpg scdaemon delegation to system pcscd) - flake.nix exposes homeConfigurations.{vm,host} via a mkProfile helper - rj alias in dot_zshrc updated to ~/.local/share/dotfiles/nix - bootstrap.sh / justfile updated to use #vm against the new path The split is behaviour-preserving for the VM: vm.nix + common.nix together carry the same package set as the previous home.nix. host.nix is provisioned but not yet wired into bootstrap (phase p8). Phase 1 of the nix-on-host migration plan. 2026-05-20T12:56:08Z sommerfeld sommerfeld@sommerfeld.dev 2026-05-20T12:56:08Z urn:sha1:08996a92ebeccc01e523f79723efcd9b20922e98 dj invokes ~/dotfiles/justfile and rj invokes ~/.local/share/dotfiles/remote-dev/justfile, both pinned to the justfile's directory via --working-directory so the aliases behave identically from any CWD.