I just like building things.
Now building -> https://mkrz.studio/en

github

Paul Contreras • Peerlist

StrictBlock: A redesigned iPhone app blocker to stop procrastinatingStrictBlock is a strict iPhone app and website blocker built to help you stop procrastinating, protect deep work, and stay focused during study, work, sleep, or personal routines.This launch marks a complete relaunch of StrictBlock, with a full redesign, a cleaner focus experience, improved blocking flows, new accountability features, Pomodoro sessions, weekly reports, streaks, trophies, widgets, and a session journal.Most focus apps only remind you to stay disciplined. StrictBlock helps you create a real boundary by blocking distracting apps and websites during active focus sessions. Whether you are studying for exams, working on deep work, building better habits, or trying to reduce screen time, StrictBlock gives you the tools to use your iPhone more intentionally.Create custom focus profiles for different routines like studying, work, sleep, Pomodoro sessions, or deep work. Start a session, block the apps and websites that usually distract you, and stay accountable as you build better focus habits over time.StrictBlock is designed for students, professionals, creators, and anyone looking for a stronger alternative to basic Screen Time limits.Key featuresApp &amp; Website Blocking Block distracting apps and websites during focus sessions so you can stay away from TikTok, YouTube, Instagram, X, Safari, games, and other distractions.Custom Focus Profiles Create different blocking setups for studying, work, sleep, deep work, morning routines, or any activity that needs focus.Pomodoro Timer with App Blocking Use focused work intervals while your most distracting apps and websites stay blocked.Weekly Focus Report Track your focus sessions, understand your productivity patterns, and see how your discipline improves over time.Streaks, Trophies &amp; Accountability Build better focus habits with streaks, trophies, and consequences for ending sessions early.Session Journal Reflect after each focus session and understand what helped or hurt your productivity.Home Screen Widgets Keep your focus streaks, progress, and discipline visible directly from your iPhone Home Screen.StrictBlock is more than a productivity timer. It is a strict distraction blocker for people who want to stop procrastinating, stay focused, and build a healthier relationship with their iPhone.

Strict App Blocker for iPhone: StrictBlock

Smallr is a native macOS app that compresses videos and images in one drag-and-drop. No settings, no cloud, no subscription.Smart Mode analyzes each file and automatically picks the right codec and bitrate. Drop a 4K video, get a small file. Nothing to configure.Supports MP4, MOV, HEVC, H.264, JPEG, PNG, WebP, and HEIC. Batch process entire folders. Everything runs locally. Your files never leave your Mac.One-time purchase. $6.99.

Smallr — Compress Video & Images on Mac

Ambiplay is a two-hand coordination game for iPad that turns motor skill training into a fun daily challenge.Trace mirrored patterns with both hands at the same time, improve your bilateral coordination, and get instant feedback through Ambiplay’s Brain Sync Score. The game measures left-hand accuracy, right-hand accuracy, synchronization, completion time, and consistency, so every session shows real progress.Instead of feeling like repetitive practice, Ambiplay makes coordination training feel like a game. Complete daily challenges, earn stars, build streaks, gain XP, unlock harder levels, and compete on Game Center leaderboards.Built with SpriteKit, Ambiplay gives smooth real-time tracing feedback so each hand stays on the correct path. All progress, scores, levels, and playtime are stored locally on your device.Whether you want to improve hand coordination, reaction timing, focus, or just play a unique skill-based puzzle game, Ambiplay gives you a simple and engaging way to train both hands every day.Key Features<ul><li>Synchronized Two-Hand Tracing Train both hands at the same time by following mirrored patterns.</li><li>Brain Sync Score Measure left-hand accuracy, right-hand accuracy, synchronization, and completion time.</li><li>Daily Coordination Challenges Practice with fresh patterns designed to keep training engaging.</li><li>Progression System Earn stars, XP, streaks, player levels, and personal bests.</li><li>Real-Time Tracing Feedback Built with SpriteKit for smooth and accurate gameplay.</li><li>Game Center Leaderboards Compete with other players and track your best scores.</li><li>Local Progress Storage Your scores, levels, and progress stay saved on your device.</li></ul>

Brain Sync Game - Ambiplay

<h3>mkrz is a creative studio specializing in building custom software, automations, and AI integrations for businesses in Mexico and Latin America.</h3><ul><li>Custom Software: Design and build tailored tools for operations that have outgrown spreadsheets, chats, and generic platforms. This includes web and mobile apps, management and admin systems, custom dashboards and reporting, tailored platforms and CRMs, and internal tools for teams.</li><li>Automations: Automate repetitive tasks such as confirmations, reports, follow-ups, and integrations to free up your team's time. Services include WhatsApp Business flows, lead capture and follow-up, automatic reports and notifications, system integrations, and AI agents.</li></ul>The process involves understanding your current operations, designing the system through clear screens and flows, and shipping deployed, documented software that your team can run independently.They focus on creating software that feels made for your operation, offering a simple start with serious build capabilities.

mkrz — creative studio

Unlock your productivity with StrictBlock, the ultimate focus app designed for iOS users. This powerful tool helps you stay on task by blocking distracting websites and apps, allowing you to take control of your time and boost your productivity.<ul><li>Block Distractions: Automatically block distracting websites and apps during focus sessions.</li><li>Time Management: Set custom schedules and time limits for different apps and websites.</li><li>Focus Goals: Set daily focus goals and track your productivity progress.</li><li>Instant Blocking: One-tap blocking for immediate focus when you need it most.</li></ul> Join to our users who have transformed their productivity with StrictBlock. Download for iOS or try the web app today and unlock your productivity potential.

StrictBlock

Complexity is a web-based tool takes mathematical functions as input and creates stunning 3D animations of them using Three.js and Next.js. Whether you're a student, educator, or enthusiast, this tool helps you visualize complex mathematical functions in an intuitive and interactive way.

Tech Stack

Next.js – A fast React framework for building web applications.
Three.js – A 3D JavaScript library that makes creating 3D graphics on the web simple.
React – A JavaScript library for building user interfaces.
Tailwind CSS – A utility-first CSS framework for fast UI development.
TS – For all the dynamic functionality and interactivity.

Complexity

Developed a robust competitive programming platform tailored for real-time collaboration and high concurrency, ensuring seamless experiences for students and educators.

Aptitudes Demonstrated:

Backend Development: Built with Go and Fiber, supporting thousands of concurrent users.
Real-Time Features: Utilized WebSockets for live collaboration and code submission.
Frontend Development: Integrated an in-browser IDE for a streamlined user experience.
System Optimization: Developed an efficient grading system and scaled backend for smooth operation under load.

CUValles CSES Platform

Engineered a secure and scalable personal finance management tool, enabling real-time expense tracking and financial insights for users.

Aptitudes Demonstrated:

API Development: Built with Django and PostgreSQL for reliable data management.
Frontend Development: Designed with Next and React for intuitive budget management and reporting.
Authentication: Implemented JWT-based authentication for secure access.
Performance: Optimized database queries to ensure responsive and scalable functionality.

Expenso

Designed a lightweight micro-framework in Go, optimized for rapid backend development and performance.

Aptitudes Demonstrated:

Framework Design: Created tools for fast project initialization and routing.
Security: Integrated JWT-based authentication and middleware features.
Performance: Focused on high-speed processing using fasthttp.
Usability: Delivered a streamlined CLI tool for simplified development workflows.

Minimal API MicroFramework

Engineered a sophisticated veterinary administration system, enabling seamless patient management, efficient appointment scheduling, and comprehensive medical record keeping to streamline veterinary operations.

Aptitudes Demonstrated:
Backend Development: Utilized C++ for backend.
Frontend Development: Implemented with React and TypeScript.
Database Integration: Integrated SQLite for data management.
Authentication: Implemented JWT for secure user access.

myVet

Riemann Sphere is a web application that allows users to explore the Riemann sphere, a fascinating mathematical object that has fascinated mathematicians for centuries. The application provides an interactive interface for users to visualize the Riemann sphere, its properties, and its applications.

Technologies Used

Next.js
TypeScript
Tailwind CSS
Three.js
React Three Fiber

Paul Contreras

I just like building things. Now building -> https://mkrz.studio/en