Read what ships.

01Dropbox · architecture

Evolving our calendar assistant Reclaim to be AI-native without starting over

Dropbox engineers evolved their calendar assistant, Reclaim, to support natural-language AI requests by building a custom agent platform that integrates with existing scheduling logic. They utilized a shared action system and a Preview Mode backed by Redis to ensure AI suggestions are consistent and reviewable before affecting real calendars. This approach allows the product to adopt AI capabilities without fragmenting its core architecture or duplicating functionality.

DEPTH ■■■■■7 min read3 weeks ago

InfrastructureMachine Learning

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02Stripe · practice

Why I tried to kill token billing (and why we kept it)

The author examines the limitations of token-based billing as a customer-facing pricing model, noting that it exposes internal margins and commoditizes AI products. The company explored abandoning token billing entirely but realized its necessity for backend cost tracking and margin management. Ultimately, the piece proposes unified credits and output-based pricing as better ways to align invoices with customer value.

DEPTH ■■■■■7 min read3 weeks ago

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03Julia Evans · practice

Replacing the old battery on rechargeable bike lights

An individual attempted to repair old rechargeable bike lights with degraded batteries by cutting open the casing, desoldering the dead cells, and soldering in replacements. Despite lacking electronics experience and losing some screws, the repair was successful and restored the functionality of the lights.

DEPTH ■■■■■5 min read4 weeks ago

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