Can AI replace Ahrefs?

Build me a daily rank tracker and site auditor for my own domain, the one slice
of Ahrefs worth building solo. Requirements:

- Python + httpx. Keywords live in keywords.txt, up to 50 terms; fetch positions
  from a SERP API (Serper.dev or SerpAPI, key in .env, free tiers cover a small
  list). Do not scrape Google directly, that just gets blocked.
- Store keyword, position, ranking URL, and date in SQLite; run daily from cron.
- A localhost dashboard (Flask + Chart.js): a sparkline per keyword and a
  biggest-movers-this-week list.
- A technical audit crawler for my domain: follow internal links, flag broken
  links, missing or duplicate titles and descriptions, redirect chains, and
  pages under 200 words; write findings to audit.md.
- Pull clicks and impressions per query from the Google Search Console API and
  show them beside the rank data. Warn me in the README: budget an hour for the
  Google Cloud console OAuth setup, it is the painful step.
- Local only, no accounts, no telemetry.
- Out of scope: backlink data, keyword volume and difficulty, and competitor
  research. Do not try to fake these by scraping; that dataset is the
  subscription.
- README: API key setup, the Search Console connection steps, and a plain
  statement that Ahrefs is a proprietary web index and this replaces the
  dashboard, not the data.