Projects — Rivas Software

Fitness Flex

iOS App · Training Platform & Progress Tracker

2024 — Present

Built around trainers and the clients they coach — with a free tracker anyone can use, whether they have a trainer or not.

What it does

Trainer assessments
Trainers assess each client, build their plan, and adjust it as the numbers move.
Trainer ↔ trainee messaging
Coaching happens in the app, attached to the workout it's about.
Real-time notifications
Plan updates, check-ins, and completed sessions land instantly on both sides.
Free for everyone
The full tracker is free — no subscription wall in front of logging a set.
Muscle-map targeting
A body map shows exactly what today's session hits, and what's been skipped.
Works without signal
Logs locally and syncs later, because gym Wi-Fi is not a dependency.
Trainer assessments
Trainers assess each client, build their plan, and adjust it as the numbers move.
Trainer ↔ trainee messaging
Coaching happens in the app, attached to the workout it's about.
Real-time notifications
Plan updates, check-ins, and completed sessions land instantly on both sides.
Free for everyone
The full tracker is free — no subscription wall in front of logging a set.
Muscle-map targeting
A body map shows exactly what today's session hits, and what's been skipped.
Works without signal
Logs locally and syncs later, because gym Wi-Fi is not a dependency.

In the app

Fitness Flex — progress metrics, workout plans, and muscle-map targeting

The outcome

Trainers run their whole roster in one app

Assessments, plans, and client comms stopped living in texts.

The free tier is the funnel

Solo lifters land in the app, then convert into coached clients.

Shipped solo, end to end

Product design, the iOS app, the Go API, and the infra behind it.

TypeScriptReact NativeExpoReduxGoMongoDBDocker

StockSource Glass Solutions

Web System · Glass Contractor — Miami-Dade

2025

A licensed glazing contractor running on referrals and site visits. Now the system sells while the crew installs.

What it does

Automated campaigns
Ad clicks, install reels, and reviews feed one always-on marketing loop.
Cold outreach sequences
Builders and property managers get worked automatically, not when there's downtime.
Contact & lead pipeline
Every inquiry lands in one place with its quote, specs, and follow-up state.
3D configurator
Customers spec their own shower or door — style, glass, hardware, dimensions.
24-hour quote funnel
Three steps to a custom quote, with measurements already attached.
Consultation booking
Site visits get scheduled online instead of over a week of phone tag.
Automated campaigns
Ad clicks, install reels, and reviews feed one always-on marketing loop.
Cold outreach sequences
Builders and property managers get worked automatically, not when there's downtime.
Contact & lead pipeline
Every inquiry lands in one place with its quote, specs, and follow-up state.
3D configurator
Customers spec their own shower or door — style, glass, hardware, dimensions.
24-hour quote funnel
Three steps to a custom quote, with measurements already attached.
Consultation booking
Site visits get scheduled online instead of over a week of phone tag.

In the app

StockSource Glass Solutions — quote funnel, 3D shower configurator, and install showcase

The outcome

Moved upmarket

Custom-spec jobs replaced one-off repair calls as the core business.

Referrals → inbound pipeline

Leads arrive on a schedule instead of whenever word of mouth allows.

Quotes open without a drive

Dimensions come in with the request, so jobs price before anyone travels.

Next.jsTypeScriptThree.jsPostgreSQLTailwind CSS

Tiempos Calle 8

Web Platform · Restaurant — Little Havana, Miami

2025

A Calle Ocho restaurant living on walk-ins and a phone that never stopped ringing. Now it fills its own slow nights.

What it does

Instant reservations
Guests book in seconds; the floor sees party size and timing before they arrive.
Live menu editing
Admins change dishes, prices, and specials themselves — live in minutes.
POS integration
Ties tickets back to campaigns, so marketing traffic is traced to real covers.
Marketing visibility
One dashboard for what's driving bookings, and which nights need a push.
Automated campaigns
Promos and re-engagement fire on their own to fill the quiet nights.
Guest contact list
Visitors become contacts the restaurant owns, not followers on someone's platform.
Instant reservations
Guests book in seconds; the floor sees party size and timing before they arrive.
Live menu editing
Admins change dishes, prices, and specials themselves — live in minutes.
POS integration
Ties tickets back to campaigns, so marketing traffic is traced to real covers.
Marketing visibility
One dashboard for what's driving bookings, and which nights need a push.
Automated campaigns
Promos and re-engagement fire on their own to fill the quiet nights.
Guest contact list
Visitors become contacts the restaurant owns, not followers on someone's platform.

In the app

Tiempos Calle 8 — restaurant home, menu with online ordering, and instant table reservations

The outcome

Retention became a lever

Re-engagement brings first-timers back instead of hoping they return.

Marketing traced to walk-ins

POS attribution shows which campaigns actually put people in seats.

Phone-only → booked online

Reservations run themselves while the kitchen stays on the kitchen.

Next.jsTypeScriptPostgreSQLTailwind CSS

ScripLedger

Mobile App · Blockchain Rewards & Gift Cards

2023 — Present

Started as a hackathon build and kept going — now it onboards businesses onto blockchain-backed rewards and gift card programs.

What it does

Business onboarding
Local businesses launch their own rewards or gift card program without touching crypto.
Rewards programs
Points and balances issued on-chain, redeemable at the counter like any gift card.
One wallet, every brand
Balances across participating businesses live in a single account view.
Blockchain-backed balances
Value is settled on Solana, so transfers and redemptions are verifiable.
Send, receive, and swap
Users move value between people and between brands, straight from the app.
In-store checkout
Scan and redeem at the register — the same flow staff already know.
Business onboarding
Local businesses launch their own rewards or gift card program without touching crypto.
Rewards programs
Points and balances issued on-chain, redeemable at the counter like any gift card.
One wallet, every brand
Balances across participating businesses live in a single account view.
Blockchain-backed balances
Value is settled on Solana, so transfers and redemptions are verifiable.
Send, receive, and swap
Users move value between people and between brands, straight from the app.
In-store checkout
Scan and redeem at the register — the same flow staff already know.

In the app

ScripLedger — all-in-one gift card app with account summary and balances

ScripLedger — sending and receiving gift card balances

ScripLedger — swapping balances between brands

The outcome

Hackathon demo → live product

The prototype became a platform businesses actually sign onto.

Rewards without the crypto learning curve

Merchants and customers get the upside; the chain stays out of sight.

Built the wallet infrastructure

Cross-platform app plus the secure wallet layer underneath it.

React NativeExpoNode.jsSolanaMongoDB

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