Come aggiungere preprocessor scss

[m1001]

Come aggiungo scss su altervista?
Sto provando a renderizzare questo codice, ma ho bisogno del preprocessor scss:

@import url('https://fonts.googleapis.com/css2?family=Mr+Dafoe&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Exo:wght@900&display=swap');

body, html {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  background: radial-gradient(rgba(#7f00fd, 0.5) 0%, transparent 70%), linear-gradient(black 40%, black 70%);
  perspective: 700px;
  font-size: clamp(10px, 2vw, 20px);
}

.lines {
  $color: green;
  position: fixed;
  width: 100vw;
  height: 4em;
  background: linear-gradient(rgba($color, 0.2) 20%, $color 40%, $color 60%, rgba($color, 0.2) 80%);
  background-size: 1px 0.5em;
  box-shadow: 0 0 1em rgba($color, 0.4);
  transform: translateY(-1em);
  left: 0;
}

h1 {
  position: relative;
  font-family: 'Exo';
  font-size: 9em;
  margin: 0;
  transform: skew(-15deg);
  letter-spacing: 0.03em;
  
  &::after {
    content: '';
    position: absolute;
    top: -0.1em;
    right: 0.05em;
    width: 0.4em;
    height: 0.4em;
    background: 
      radial-gradient(white 3%, rgba(white, 0.3) 15%, rgba(white, 0.05) 60%, transparent 80%),
      radial-gradient(rgba(white, 0.2) 50%, transparent 60%) 50% 50% / 5% 100%,
      radial-gradient(rgba(white, 0.2) 50%, transparent 60%) 50% 50% / 70% 5%;
    background-repeat: no-repeat;
  }
  
  span:first-child {
    display: block;
    text-shadow: 0 0 0.1em #8ba2d0, 0 0 0.2em black,  0 0 5em green;
    -webkit-text-stroke: 0.06em rgba(black, 0.5);
  }
  
  span:last-child {
    position: absolute;
    left: 0;
    top: 0;
    background-image: linear-gradient(#00cc88 25%, green 35%, #00cc88 50%, #00cc88 55%, green 75%);
    -webkit-text-stroke: 0.01em black;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }
}

h2 {
  font-family: 'Mr Dafoe';
  margin: 0;
  font-size: 5.5em;
  margin-top: -0.6em;
  color: white;
  text-shadow: 0 0 0.05em #fff, 0 0 0.2em green, 0 0 0.2em #00cc88;
  transform: rotate(-6deg);
}

.grid {
  $main: #7f00fd;
  $glow: rgba(black, 0.4);
  background: 
    linear-gradient(transparent 65%, $glow 75%, $main 80%, $glow 85%, transparent 95%),
    linear-gradient(90deg, transparent 65%, $glow 75%, $main 80%, $glow 85%, transparent 95%);
  background-size: 30px 30px;
  width: 200vw;
  height: 300vh;
  position: absolute;
  bottom: -120vh;
  transform: rotateX(-100deg);
  -webkit-mask-image: linear-gradient(rgba(0,0,0,1), rgba(0,0,0,0) 80%);
} 

[m1001]

Risolto, per chi avesse lo stesso problema:

SASS è un preprocessor, il server non lo può leggere senza che venga installato dall'interno, di solito si usa localmente, comunque sia i file scss possono essere convertiti in css puro con un poco di lavoro, ci sono anche dei tool appositi per automatizzare il processo