Sovereign Intelligence: The Complete 25,000 Word Blueprint Download This 12-part series has walked through the full architecture of Pocket Analyst—the local-first financial AI that keeps your data on your device and sends only a sanitized snapshot ...

The Privacy Gap: Why sending financial ledgers to OpenAI is broken Financial data is the most sensitive data users own. Transaction histories, account balances, and position-level detail are the crown jewels of personal finance. Sending raw ledgers...

Measuring Loop Velocity Without Portfolio Rows /admin/analytics is an operator console—revenue, referrals, npm packages, viral email blast stats, Pocket Analyst usage metadata. It is not a SQL console into user holdings. API surface: GET /api/ad...

Everyone is talking about LLMs, but very few people actually run one. Most developers rely on APIs from OpenAI or Anthropic. It works great until you start thinking about cost, control, or what happens when that API isn’t available. That’s when a mo...

The End of Data Export: Why the Cloud is a Compliance Trap Privacy is not a feature you bolt on at the end — it is infrastructure. For anyone with real capital at stake, the sharp risk is often not “using AI” in the abstract; it is routing the ful...

Sanitization by Construction: The "Edge Compiler" Regex-based PII stripping on arbitrary exports is fragile: one new column, one merged cell, one localization change—and you leak. We chose structural exclusion: the network never sees a free-form l...

The End of Data Export: Why the Cloud is a Compliance Trap Privacy is not a feature you bolt on at the end — it is infrastructure. For anyone with real capital at stake, the sharp risk is often not “using AI” in the abstract; it is routing the ful...

The "Privacy vs. Utility" trade-off in FinTech AI is a false dichotomy. You just have to be willing to engineer a harder architecture. ️ Lately, I've had a lot of conversations with CTOs panicking about upcoming DORA regulations. They want to use fr...

Beyond Finance: Use Cases for Client-Side ETL Any source that can export CSV can be supported. The same pipeline applies; only the header vocabulary and locale may differ. Brokers, banks, crypto, tax tools Traditional brokers US/UK/EU, banks, cry...

The Privacy Gap: Why sending financial ledgers to OpenAI is broken Financial data is the most sensitive data users own. Transaction histories, account balances, and position-level detail are the crown jewels of personal finance. Sending raw ledgers...

Beyond Finance: Use Cases for Client-Side ETL Any source that can export CSV can be supported. The same pipeline applies; only the header vocabulary and locale may differ. Brokers, banks, crypto, tax tools Traditional brokers US/UK/EU, banks, cry...

The Privacy Gap: Why sending financial ledgers to OpenAI is broken Financial data is the most sensitive data users own. Transaction histories, account balances, and position-level detail are the crown jewels of personal finance. Sending raw ledgers...

Security & Threat Modeling for Local Apps Full CSV never touches your server. Here's what the design guarantees—and how we mitigate the rest. What is never transmitted by design Full CSV: Never sent to the server. Only headers and a small sample ...

Security & Threat Modeling for Local Apps Full CSV never touches your server. Here's what the design guarantees—and how we mitigate the rest. What is never transmitted by design Full CSV: Never sent to the server. Only headers and a small sample ...

The Interface of Uncertainty: Designing Human-in-the-Loop When the heuristic or LLM isn't confident, we don't guess. We show the mapping UI and let the user confirm or correct. That's REQUIRESMAPPING—the interface of uncertainty. Production touchp...

The 3-Row Snapshot: Privacy-Preserving Inference Sending the full CSV to an API would be a privacy and cost disaster. We send only headers and three sample rows. That's enough for the model to infer which column is date, ticker, quantity, price—wit...

The Privacy Gap: Why sending financial ledgers to OpenAI is broken Financial data is the most sensitive data users own. Transaction histories, account balances, and position-level detail are the crown jewels of personal finance. Sending raw ledgers...

Why We Bet on CSV over APIs Integrating Plaid—or any broker API—is a nightmare. OAuth changes, rate limits, schema updates, deprecations, or the provider shutting the integration down. Every integration is a long-term liability. A small team cannot...

Building a Sovereign Portfolio Risk Calculator: Why We Ditched the Backend Client-side financial modeling. React risk calculator. TypeScript finance tooling. This post is about why we deliberately killed the backend for portfolio risk analysis — a...

We stopped reading the news. We built an AI to read it for us. Meet Pulitzer v2 Last week, we open-sourced our editorial team: Read the original post: “Meet Pulitzer”LINKTOCODERLEGIONPOST1 Today, I want to talk about why we handed the keys to ...