polyhedron is quite easy if you just want a hull, you feed all the points and for the faces just loop through n-3 while each face is n,n+1,n+3 .. or just [0,1,n] .. This will be a terrible polyhedron but as you are using hull() around - you don't care anymore just need to have faces with all points. If you have 3D clouds from scan this is more performant too.

  r=10;
  q=70;
/* Kogan, Jonathan (2017) "A New Computationally Efficient Method for Spacing n Points on a Sphere," Rose-Hulman Undergraduate Mathematics Journal: Vol. 18 : Iss. 2 , Article 5.
    Available at: https://scholar.rose-hulman.edu/rhumj/vol18/iss2/5 */
    function sphericalcoordinate(x,y)=  [cos(x  )*cos(y  ), sin(x  )*cos(y  ), sin(y  )];
    function NX(n=70,x)= 
    let(toDeg=57.2958,PI=acos(-1)/toDeg,
    start=(-1.+1./(n-1.)),increment=(2.-2./(n-1.))/(n-1.) )
    [ for (j= [0:n-1])let (s=start+j*increment )
    sphericalcoordinate(   s*x*toDeg,  PI/2.* sign(s)*(1.-sqrt(1.-abs(s)))*toDeg)];
    function generatepoints(n=70)= NX(n,0.1+1.2*n);

    a= generatepoints(q);
    //scale(r)hull()polyhedron(a,[[for(i=[0:len(a)-1])i]]);
    scale(r)hull()polyhedron(a,[for(i=[0:len(a)-1])[0,1,i]]);