nixos-config/pkgs/contact-page/src/main.js

(() => {
  const givenName = document.getElementById('name').innerText.split(" ")[0].toLowerCase()
  const domain = location.host

  if (domain === "sbruder.de") {
    const mailAddress = givenName + '@' + domain
    const mailEl = document.getElementById('email')
    mailEl.innerText = mailAddress
    mailEl.href = `mailto:${mailAddress}`

    const matrixAddress = '@' + givenName + ':' + domain
    const matrixEl = document.getElementById('matrix')
    matrixEl.innerText = matrixAddress
    matrixEl.href = `https://matrix.to/#/${matrixAddress}`
  }

  const forbiddenWordEls = Array.from(document.getElementsByClassName("forbiddenword"))
  forbiddenWordEls.forEach(el => {
    el.innerHTML = "blockchain"
    el.classList.add("processed")
  })
})()