How to builda Bluesky bot

# bot.py  (pip install atproto)
import os
from atproto import Client, client_utils

client = Client()
client.login(os.environ["BLUESKY_HANDLE"], os.environ["BLUESKY_APP_PASSWORD"])

text = (
    client_utils.TextBuilder()
    .text("Today's reading: ")
    .link("the changelog", "https://example.com/changelog")
)
client.send_post(text)

# .github/workflows/bluesky-bot.yml
name: bluesky-bot
on:
  schedule:
    - cron: "17 14 * * *"   # 14:17 UTC daily, off the top of the hour
  workflow_dispatch:
jobs:
  post:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-python@v5
        with:
          python-version: "3.12"
      - run: pip install atproto
      - run: python bot.py
        env:
          BLUESKY_HANDLE: ${{ secrets.BLUESKY_HANDLE }}
          BLUESKY_APP_PASSWORD: ${{ secrets.BLUESKY_APP_PASSWORD }}

# rss_bot.py  (pip install feedparser requests)
# Run every hour; posts entries published in the last hour.
import calendar
import os
import time

import feedparser
import requests

FEED = "https://example.com/blog/rss.xml"
WINDOW = 60 * 60  # seconds, match your cron interval

feed = feedparser.parse(FEED)
cutoff = time.time() - WINDOW

for entry in feed.entries:
    published = entry.get("published_parsed")
    if not published or calendar.timegm(published) < cutoff:
        continue
    title = entry.title[:240]  # leave room for the link under 300
    r = requests.post(
        "https://opentweet.io/api/v1/posts",
        headers={"Authorization": f"Bearer {os.environ['OPENTWEET_API_KEY']}"},
        json={
            "text": f"{title}\n\n{entry.link}",
            "platforms": ["bluesky"],
            "publish_now": True,
        },
        timeout=30,
    )
    print(r.status_code, (r.json().get("posts") or [{}])[0].get("results"))