Update script for Zen Browser (but can be adapted to any single file binary release on GitHub, like elfs or AppImages).

zen-update.py

#!/usr/bin/env python
"""
This script will download the latest binary/AppImage release of
$COMMAND from the GitHub releases page. You can use it for any
project that has just one binary file in the release.

It will download the file, make it executable and create a symlink
to it with the base name $COMMAND.

This is intended to keep a reliable link to the latest version of the
binary, so you can use it in your path, scripts or other automation
without juggling with version numbers.

You can do this by hand. But after the 10th time, welcome to
Automationville.

(This relies on a couple common Python libraries that you probably
already have installed. If not, `pip install` 'em.)`
"""

import os
from bs4 import BeautifulSoup
import requests
import urllib
from tqdm import tqdm

BASE_URL = "https://github.com/zen-browser/desktop/releases"
BASE_FILE = "zen-specific.AppImage"
COMMAND = "zen"


# https://stackoverflow.com/a/53877507
class DownloadProgressBar(tqdm):
    def update_to(self, b=1, bsize=1, tsize=None):
        if tsize is not None:
            self.total = tsize
        self.update(b * bsize - self.n)


def getURLtoFile(url, output_path):
    with DownloadProgressBar(
        unit="B", unit_scale=True, miniters=1, desc=url.split("/")[-1]
    ) as t:
        urllib.request.urlretrieve(url, filename=output_path, reporthook=t.update_to)


def main():
    # query the latest release page on Github
    redirected_url = requests.get(f"{BASE_URL}/latest").url

    print(f"- Found: {redirected_url}")

    # extract version number end of the redirected url
    # (e.g. github.com/ollama/ollama/releases/tag/v0.1.30 -> "v0.1.30")
    release_version = redirected_url.split("/")[-1]

    print(f"- Latest version: {release_version}")

    # our new target file will be named after the release version so we can keep track
    target_file = f"{BASE_FILE}-{release_version}"

    # bail if we've already downloaded this version
    if os.path.exists(target_file):
        print(f"- Already latest, aborting: {target_file}")
        exit(0)


    # build the download url and pull it down
    download_url = f"{BASE_URL}/download/{release_version}/{BASE_FILE}"

    print(f"- Downloading: {download_url}")

    getURLtoFile(
        f"{BASE_URL}/download/{release_version}/{BASE_FILE}",
        target_file,
    )

    print(f"- Wrote: {BASE_FILE}-{release_version}")

    # update permissions +x

    os.chmod(target_file, 0o755)

    # update symlink $COMMAND to point to the version we just downloaded

    if os.path.exists(COMMAND):
        os.remove(COMMAND)

    os.symlink(target_file, COMMAND)

    print(f"- Updated symlink: {COMMAND} -> {target_file}")


if __name__ == "__main__":
    main()

You can probably pull line 22 (from bs4 import BeautifulSoup); that was from a prior version.