Not ideas — deployed systems
Ghil Labs projects don't end as documents. Calculation engines, mobile apps, trading frameworks — all of them run in the real world.
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A walkthrough of what's actually shipping
On the App Store now · Android soon
DealDesk
Rental property underwriting in your pocket. Enter a deal and a deterministic calculation engine instantly returns DSCR, Cap Rate, Cash-on-Cash, and BRRRR scenarios. Not LLM estimates — verifiable, formula-based results.
Deterministic EngineEvery number is computed in code — LLM hallucination eliminated by design. Same input, same output.
DSCR · Cap Rate · BRRRRCovers the full practitioner toolkit, from lender thresholds (DSCR 1.25x+) to refinance capital recovery.
Korean first · English in v2.0v1.0 ships in Korean; v2.0 adds English with side-by-side terms, e.g. 감가상각 (Depreciation).
Free · OfflineEvery feature free. No in-app purchases, subscriptions, or ads. Works fully offline.
* The iOS app is live on the App Store. Android (Google Play) is in review. v1.0 is Korean-only; English and more features arrive in v2.0.
Purchase Price$385,000
Rent /mo$3,150
Interest Rate6.75%
Down Payment25%
DSCR0.00x
CAP RATE0.0%
CASH-ON-CASH0.0%
✓ LENDER THRESHOLD MET · DEAL PASS
Trading Systems · Neutral-Alpha OS
Not predicting direction — engineering returns through structure
| Strategy | Return Source | Active Regime | Risk Controls |
|---|---|---|---|
| Iron CondorXSP · IRC §1256 | Theta decay — collecting premium while the index stays in a defined range | Low-volatility, range-bound markets | Delta-neutral maintenance, defined-risk max loss |
| Funding Rate ArbPERP ⇄ SPOT | Perpetual-futures funding — collect short-side funding in long-crowded markets, spot hedge removes direction | Overheated crypto bull phases | Exchange diversification, hedge-ratio monitoring, liquidation buffer |
| Long StraddleVOL EXPANSION | Volatility expansion — direction-agnostic; the move itself is the profit | Pre-event low-vol compression | Fixed premium budget, theta-decay management |
| Trend FollowingREGIME · MOMENTUM | Trend persistence — regime detection first, then rule-based momentum entries and exits | Clearly directional trending markets | Predefined stops, trailing exits, position-sizing limits |
A regime-switching framework classifies the market state and allocates capital across the four strategies. Automated via a GitHub Actions monitoring → alert → verification pipeline. ※ This describes system design, not investment advice.