Stay loco.
Support localhost.
We're a one-engineer shop out of Loudoun County building software for the problems nobody else bothered to solve. Finance, scheduling, coaching. If it helps real families get organized and stop guessing, we're building it.
What we're building
Tools that fill gaps, not shelves. Each product starts with a real problem that someone in our family or community actually has.
Your full financial life in one place. 17 modules that actually talk to each other. Change one thing, watch it ripple through everything.
- AI Advisor
- Plaid Sync
- Simulations
- What-If Scenarios
- Replacement Radar
- Tax Strategy
- 529 Planning
- Estate + LTC
- Statement Upload
- 17 Modules
What if you just... tried it?
Run any scenario against your real accounts. See exactly what changes.
Retire early?
Quit at 55 instead of 62. See if your portfolio survives the gap years.
Buy the house?
Model the new mortgage, taxes, and insurance against your actual cash flow.
Take the new job?
Compare salary, benefits, and 401k matches side by side. See the long game.
Your real data. Real projections. No guessing.
More tools. Same philosophy.
Every product starts with a real problem that someone in our family or community actually has.
Con Brio
Studio management for music teachers. Stop juggling texts, Venmo, and spreadsheets. Con brio means "with spirit" and that's how teaching should feel.
- Voice Assistant
- AI Practice Plans
- Snow Day Cascade
- Makeup Credits
- Autopay + 1099s
- Student Gamification
Dugout AI
Development-first coaching for baseball and fastpitch. Upload film, ask questions, get personalized teaching points for every kid on your roster.
- Video Analysis
- AI Coaching Chat
- Development Plans
- Fair Lineups
- Practice Builder
- Parent Reports
A little loco.
A lot of localhost.
We build for people who have better things to do than fight with spreadsheets. Every feature earns its place or gets cut. Ship fast, stay scrappy, keep it local.
No complexity theater
If a feature makes you feel like you're doing "work" to use it, we failed. Interfaces should disappear and let you think about your actual life.
Your data stays yours
Bank credentials never touch our servers. OAuth tokens are encrypted in Firestore with server-side-only access. We can't see your balances even if we wanted to.
Find the gaps, go loco on them
We don't rebuild what Mint or YNAB already do. We find the blind spots other tools ignored: vehicle fleet costs, replacement timing, household tax strategy, and projections from next week to next decade.
Want to go loco together?
Localhost LLC is a one-person shop out of Loudoun County. Questions, feedback, wild ideas, or just want to talk shop? Hit the button.
Contact Brian