My personal portfolio.
You'll need to create a .env.local with the following variables:
# Telegram API
# https://core.telegram.org/bots/api
TELEGRAM_TOKEN=
TELEGRAM_CHAT_ID=
# Google reCAPTCHA API
# https://www.google.com/recaptcha/admin/create
NEXT_PUBLIC_RECAPTCHA_SITE_KEY=
RECAPTCHA_SECRET_KEY=