Portfolio

https://momence.com

Momence (2020-) is a software and payments platform for fitness studios, gyms, and wellness businesses. It's the one-stop shop software for yoga and pilates studios, fitness clubs, and salons & spas. Momence provides these businesses with a scheduling software to take bookings for their classes and appointments, a POS for in-person payments and integrated online payments, a CRM for both members and leads, a unified inbox for all communication channels, marketing tools including email & SMS campaigns, automated sequences, the ability to run social media ads, and a full reporting suite. The unique selling point of Momence is that it offers all this functionality in one easy-to-use software. Inside of Momence, customers also get access to staff time tracking, task management, retail and merchandise selling, reputation management, and accounting tools. Tens of thousands of businesses use Momence and millions of end-users book their fitness and wellness experiences through the Momence app. The company started during Covid as a response to the outdated software companies in the industry.

Lux

Lux was an in-person POS system that allowed customers to pay with contactless finger scans and merchants to receive payments with no card processing fees. The Lux mobile app allowed customers to link their biometric IDs to their bank accounts and biometric scanners were installed in merchant stores, where customers made contactless payments using their finger. Since the transaction settled immediately through bank wire, traditional card networks were by-passed, and merchants didn’t incur any card processing fees. The Lux merchant app allowed merchants to manage their inventory, launch loyalty programs, and sync transactions with their existing POS. The Lux mobile app for customers allowed customers to see their transactions and redeem points. The company was launched on Harvard’s campus in 2019 and ceased operations due to Covid in 2020.

https://github.com/vdrmota/ULTIBET

Valhalla is a light-weight blockchain client written in node. It's a blockchain ecosystem intended to run decentralized applications that require extremely fast transaction settlement, variegated incentive structures for nodes, a solution to the pay-per-transaction problem, and no chain bottlenecks caused by high-profile smart contracts. Written in NodeJS, Valhalla is lightweight and can be compiled to work on any system. It allows application developers to decide on their own business models, freeing them from the constraint of ecosystems that require users to pay for every transaction. It uses a novel consensus algorithm building on round-robin mining, with penalties for late or faulty blocks. Valhalla also allows for relay servers to broadcast payloads, helping smaller nodes avoid DoS attacks. Two applications are planned to launch on Valhalla in Q4 of 2018.

https://fameshow.co

Fameshow is a live game show where random audience members are chosen to stream content for 20 seconds. Audience upvotes can extend the streamer’s time, paying them for every minute they stay live. It’s built with Swift for iOS, using RTMP for streaming, and NodeJS for backend logic. The introduction video played at the start of every show can be seen here.

http://ac-fraglog.vojtadrmota.com

AC Frag-Log (2011–2016) was a scoreboard for the open-source FPS game AssaultCube. It tracked the gameplay of over 35,000 players worldwide. Backend PERL scripts parsed server logfiles, which were compiled and processed with PHP. Frontend used SQL, JavaScript, CSS, and HTML. By 2016, the database contained over 8 years of combined gameplay data.

http://hvitdebate.vojtadrmota.com

A site for debaters at Hvitfeldtska Gymnasiet, featuring a comprehensive “motion-picker” to filter hundreds of motions by category for impromptu rounds. Also integrates with a League system that tracks individual debater results and displays statistics with automatically generated visuals. Coded in PHP, SQL, HTML, CSS, and JavaScript.

BytMatch

BytMatch is a match-exchange system for Swedish soccer referees. It crawls match info from multiple servers and compiles it into a user-friendly database. Referees can apply for, upload, or exchange matches, with an approval system for referee coaches. Built with PHP, HTML, CSS, SQL, and jQuery.

http://tennisloggen.vojtadrmota.com

A user-friendly database of Swedish youth tennis results, letting parents, coaches, and players track statistics, tournaments, and club activities in one place. Built with PHP, SQL, HTML, CSS, and jQuery. A backend crawler updates results from various public servers.

BlockchainMail

BlockchainMail is a decentralized, blockchain-based mail client that removes reliance on Gmail or Hotmail. All email correspondence is encrypted on a blockchain ledger, ensuring cryptographically immutable data and no central authority can access it. Users can be confident their emails will not be tampered with or sold. All participants help secure the network through mining, much like Bitcoin. Both the blockchain (adapted from Bitcoin) and the client (written in Python) enable fully trustless email.

The Harvard International Review

The Harvard International Review is the largest collegiate academic journal on international affairs. I rebuilt the website from scratch to give it a minimalistic, modern look, with a staff portal for uploading and managing content. Written in PHP, JavaScript, SQL, HTML, and CSS, the site receives tens of thousands of views monthly.

TalaSanning.se

A Swedish platform for gathering anonymous feedback about oneself, whether for corporate or casual purposes. Users can also ask questions for people to answer anonymously. Each user gets a unique subdomain, easily shareable for feedback. The site is built with PHP, HTML, CSS, and SQL.

Harvard Student Organization Q-Guide

A Q-Guide for student organizations at Harvard, similar to the official course Q-Guide. It allows students to review student clubs anonymously, making it easier for new arrivals to find the right organization. Built in PHP, JavaScript, SQL, HTML, and CSS, it had over 1,000 reviews soon after launch.