Hi HN,
I do some retail arbitrage and got incredibly frustrated missing out on massive 90% off glitches. By the time someone posts a deal on Slickdeals or DealNews, bots have already cleared the stock.
I decided to fix my own problem and built Sniper Syndicate. It’s a custom Python Telegram bot that scrapes RSS feeds and Reddit in real-time. Instead of just forwarding links, I wrote some Regex logic to actually extract and calculate the discounts from raw HTML, dropping anything under a 20% true discount and filtering out sweepstakes or "back in stock" spam.
It works beautifully for my own sourcing (it pings me the second a match is found), so I recently packaged the access via Whop: https://whop.com/snyper-sindicate/sniper-syndicate-membershi...
I'm still improving how the bot handles rate limits at scale with aiohttp, so I'd love to hear your thoughts on the scraping logic or any ideas to make the price filters even better!