Dotfiles Session Notes

Overview

Capture session-specific behavior and preferences for this dotfiles repo so changes remain consistent and user expectations are met.

Date Tags

• Use one lightweight date tag per workday, formatted YYYY.MM.DD, pointing at the final commit from that day's batch.
• Interpret workdays and calendar-day boundaries in the Asia/Tokyo timezone.
• Do not create a date tag on the same calendar day as the commits it would tag.
• Create a date tag only after the next calendar day has started.
• Before creating tags, list the exact tag names and commit hashes, then ask the user for confirmation.

Zsh History Ignore Patterns

• Prefer programs.zsh.history.ignorePatterns for the pattern list in home/zsh/default.nix.
• HISTORY_IGNORE only filters when writing the history file; to prevent entries from being added at all, define a zshaddhistory hook.
• Ensure extended globbing is enabled (setopt EXTENDED_GLOB) and use [[ $1 != ${~HISTORY_IGNORE} ]] inside the hook.
• The patterns use extended glob syntax like ls#( *)#, so keep setopt extendedglob within the hook as well.
• To disable extended globbing in the current shell session, run unsetopt EXTENDED_GLOB.
• In Nix multi-line strings (like initContent), escape zsh variables as ''${VAR} to avoid Nix interpolation, e.g. ''${HISTORY_IGNORE:-}.
• zshaddhistory receives the command line with a trailing newline; strip it (e.g. local line=''${1%%$'\n'}) before matching ignore patterns.
• If ignored commands still show on Up/Down, clear in-memory history with history -c then reload with fc -R.

EC2 Home Manager Profile

• flake.nix defines homeConfigurations.ec2 for EC2 using x86_64-linux and modules [ ./ec2/ec2.nix ].
• nix run .#home-manager on EC2 requires apps.x86_64-linux.home-manager (and/or packages) to be exported; add packages.${ec2System}.home-manager and apps.${ec2System}.home-manager alongside the Darwin outputs in flake.nix.
• ec2/ec2.nix installs codex, git, ripgrep, termux, plus existing tools.
• nix flake check may fail without access to the Nix cache; rerun with escalated permissions if the cache DB can't be opened.