Yuuu
@YuuuES

Independently developed tools for online communities. Contributions made here go towards the servers and development time these projects need.

🛡️ Elsa – Global Banhammer · elsa.yuuu.es

The main project. Elsa protects Telegram groups from one specific problem: child sexual abuse material.

Elsa is free for every group, and always will be. That's why it relies on contributions like yours.

• It analyses message text and matches images against material that has already been flagged.
• When something looks suspicious, it flags the sender for review. It can mute them for an hour to stop the harm spreading, but removing an account is always a human moderator's decision.
• Once a moderator decides, the ban applies across every group in the network at once, so an abuser can't just move on to the next group.
• Under the hood it uses a purpose-built classification model, trained on messages that a closed group of reviewers labels by hand. When reviewers disagree, it doesn't just count votes: it estimates each reviewer's reliability from their track record and weights their vote accordingly.

🔗 TelegrAd.link · telegrad.link

A platform and Telegram bot that helps creators and channel admins manage affiliate links and advertising, with tracking, real-time analytics and a web dashboard.

🎮 For the Overwatch community

• 🎯 OverGuessr: GeoGuessr for Overwatch maps. Guess the location from a screenshot, with several difficulty levels and a global leaderboard.
• 🏆 TryHard.ES (discontinued): a platform for competitive Spanish-language Overwatch tournaments, with real-time brackets and Battle.net login.

🧰 Other projects

• 🐾 YuuuVET: management software for veterinary clinics (scheduling, medical records, billing, inventory).
• 🍽️ Carta Online: QR digital menu for bars and restaurants, with allergen info and real-time updates.
• Plus earlier projects such as Simple Clicker and FiatEX.

💙 Where contributions go

• 🖥️ Servers and domains: Elsa runs 24/7, and image matching, storage and hosting cost money every month.
• 🧠 Improving Elsa: better detection accuracy, better tools for moderators and more communities in the protection network.
• ⏳ Development time: new maps and improvements for OverGuessr, updates and new tools.
• 🚫 Independence: keeping these projects free of investors and intrusive ads; at most, a discreet banner.

Every contribution, however small, helps keep all of this running. Thank you so much! 🙏