AboutField Notes

Franklin Jara

Charlotte, NC—Senior Software Engineer @ Medshift

I build type-safe web apps, product experiments, and small systems that earn their keep. Most of my work lives somewhere between production engineering, open-source contributions, and side quests that start from a real itch.

I'm currently a Senior Software Engineer at Medshift, focused on shipping practical tools with AI where it helps, learning lower-level systems with Zig and Rust, contributing to projects like litter, and turning hobbies like bouldering into software. When I'm offline, I'm probably climbing or listening to techno.

Useful tools over louder demos.
swemedshiftpythonvuetypescriptdjangopostgresqlshopifyrustzigboulderingtechno
mode

build / ship / refine

focus

product engineering + commerce systems

[EXPERIENCE]

Production Systems

[SHIPPED]

Public Work Ledger

A compact index of products, templates, systems projects, and upstream contributions you can click through.

receipts

What shipped, not where I network.

The page now acts like a public shipping ledger: live products, starter kits, systems projects, and upstream pull requests with links back to the work.

180+public repos + forks89PRs authored76merged PRs44merged external PRs
Live product

Cima

AI-assisted climbing feedback, session history, grade progress, leaderboards, and 50+ badge loops for climbers.

Open receipt
Live product

Drezzi

AI outfit try-on with uploaded garments, personal photos, fast render loops, lookbooks, and 4K exports.

Open receipt
Starter kit

Mono-F7

A Turborepo template for TanStack Start, Hono, tRPC, Better Auth, Drizzle/Postgres, Docker, and deployable app scaffolding.

Open receipt
Systems lab

Zig builds

A programming language, HTTP server, POSIX-ish shell, tiny racing game, and Advent of Code work shipped in Zig.

Open receipt
upstreamAll GitHub PRs
dnakov/litterAmp support, native app polish, model-picker resilience, mobile UX, themes, and Android markdown work.dnakov/alleycatAmp harness support, Droid auth store detection, and native-thread hydration on startup.rivet-dev/sandbox-agentPi harness support plus sandbox examples and docs for agent runtimes.agent/dev toolsPRs across Kittyfarm, Tokscale, Avante, kznllm.nvim, dingllm.nvim, and data-table tools.
[BUILDS]

AI Products + Distributed Systems

bouldering + aiLive product

Cima

Cima turns climbing videos into structured feedback: technique notes, session history, grade progress, leaderboards, and 50+ unlockable badges that keep climbers coming back.

Open project
ai + fashionAI app

Drezzi

Drezzi renders uploaded outfits on your own photo in about 25 seconds, with 4K results, lookbooks, style tips, and multi-pose views built around a fast try-on loop.

Open project
dev toolsOpen source

Mono-F7

Mono-F7 is the starter I wanted for shipping full-stack ideas fast: TanStack Start, Hono, tRPC, Better Auth, Drizzle/Postgres, Docker, and Turborepo wired together.

Open project
languagesSystems

Z-Language

A custom programming language written in Zig, from lexer and parser through code generation, built to understand the full pipeline behind fast developer tools.

Open project

[LABS]

full-stackFull-stack lab

F7

A multilingual full-stack todo app used as a proving ground for TanStack Start, React 19, tRPC, optimistic updates, and AWS/SST serverless deployments.

Open project
ossContributions

Open Source

I ship upstream PRs across Litter, Alleycat, Kittyfarm, sandbox-agent, Tokscale, Avante, and other tools I actually use.

Open project
generative aiGenerative AI

Starlit AI

A generative art platform for creating and sharing DALL-E 3 images, built with React and AWS Lambda to explore prompt UX and serverless AI workflows.

Open project
game devGame dev

Tiny Car

A tiny 2D racing game in Zig/Raylib focused on fast iteration: physics-based driving, random tracks, and real-time collision detection.

Open project
low-levelLow-level

HTTP Server

A from-scratch HTTP/1.1 server in Zig that handles concurrent connections, routing, static files, and structured error logging without hiding behind a framework.

Open project
github.com/makyinmars
[STACK]

Generalist operating range

I like owning the seams: product shape, UI details, API contracts, queues, data, infrastructure, and enough systems work to know when an abstraction is leaking.

Product

Ambiguous idea → useful workflow

Frontend

Vue, React, TanStack, UX polish

Backend

Python/Django, Bun/Node, APIs

Data

PostgreSQL, Drizzle, SQL modeling

AI

LLM workflows, agents, eval loops

Infra

AWS, SST, Docker, Turborepo

Systems

Rust/Zig when edges matter

Tooling

Neovim, CLIs, dev environments