Issue and renew Let's Encrypt certificates with certbot or acme.sh, configure ACME challenges, and diagnose renewal failures.
Install
npx skills add alivirgo/Major-AI-Skills --skill lets-encryptnpx skills add alivirgo/Major-AI-Skills --skill lets-encrypt -a claude-code -gnpx skills add alivirgo/Major-AI-Skills --skill lets-encrypt -a codex -ggemini skills install https://github.com/alivirgo/Major-AI-Skills.git --path skills/lets-encryptgh skill install alivirgo/Major-AI-Skills lets-encryptgit clone --depth 1 https://github.com/alivirgo/Major-AI-Skills /tmp/alivirgo__Major-AI-Skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/alivirgo__Major-AI-Skills/skills/lets-encrypt ~/.claude/skills/lets-encrypt # Claude Code
cp -R /tmp/alivirgo__Major-AI-Skills/skills/lets-encrypt ~/.agents/skills/lets-encrypt # Codex, Cursor, Gemini CLI, Copilot, OpenCode