Priced venture-round dilution math — the option-pool shuffle (solve the pre-money pool top-up for a post-close target), price per share, investor shares, ownership tables. Zero dependencies.

Convert a stack of YC SAFEs (post-money & pre-money) and convertible notes into a pro-forma cap table at a priced round — fixed-point solve, cap/discount best-price, interest accrual. Zero dependencies.

JSON parse & stringify that supports binary via bops & base64

Array#isArray for older browsers

Run a function exactly one time

Determine the `package.json#type` which applies to a location

Zero CPU overhead, zero dependency, true event-loop blocking sleep

Callback wrapping utility

Create a stream that emits events from multiple other streams

An arbitrary-precision Decimal type for JavaScript.

Support for representing 64-bit integers in JavaScript

A cross browser microtask library

process.nextTick but always with args

Constant-time comparison of Buffers

simplified stream construction

Try to guess if your terminal supports unicode

ECMAScript AST recursive visitor

random bytes from browserify stand alone

Flexible ascii progress bar

High performance middleware framework