Five lines to
your first frame

import dalaran as dl
import numpy as np

dl.init("hello-world", spawn=True)     # spawns the viewer if it isn't running

pts = np.random.normal(size=(50_000, 3))
rgb = ((pts - pts.min()) / pts.ptp() * 255).astype(np.uint8)

dl.log("world/cloud", dl.Points3D(pts, colors=rgb, radii=0.01))

use dalaran::{Points3D, RecordingStreamBuilder};

fn main() -> Result<(), Box<dyn std::error::Error>> {
    let rec = RecordingStreamBuilder::new("hello-world").spawn()?;

    let points: Vec<[f32; 3]> = (0..50_000).map(|_| random_xyz()).collect();
    rec.log("world/cloud", &Points3D::new(points).with_radii([0.01]))?;

    Ok(())
}

#include <dalaran.hpp>

int main() {
    const auto rec = dalaran::RecordingStream("hello-world");
    rec.spawn().exit_on_failure();

    std::vector<dalaran::Position3D> points = random_xyz(50000);
    rec.log("world/cloud", dalaran::Points3D(points).with_radii(0.01f));
}