EST. 2024 · A BUILDER'S LOG
TUE, MAY 26, 2026 · WEST COVINA, CA
LOUIS
CASTAÑEDA
Software, strength & intelligence.
Notes from a team of one.
VOL. II · NO. 14 SHIPPING IN PUBLIC SGV · CA
A catalogue · 06 items

The Stack.

Tested, paid for, used daily.

Every tool here is something I actually pay for and use. No demo-day endorsements, no "trending on Product Hunt" filler. If a pick is ever sponsored, it gets said out loud.

№ 01 The cloud

Amazon Web Services

Everything I ship runs on AWS — Cognito, Lambda, DynamoDB, CloudFront, S3, SES. Going deep on one cloud beats spreading thin across three.

What I run: Specifically: CDK for infra-as-code, serverless-first wherever possible, all the boring stuff so I can focus on the app.

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№ 02 The newsletter

Beehiiv

Built for growth and monetization. Free up to 2,500 subs, real analytics, ad network and paid subscriptions when you outgrow free.

What I run: Where The Dispatch lives. Embeds cleanly into Astro, owns the list, exports any time.

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№ 03 The editor

Cursor

VS Code with a brain. Cuts the time between "I know what I want" and "the change is in the diff" by an order of magnitude.

What I run: My daily driver for everything: Astro, Swift, TypeScript, CDK, markdown.

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№ 04 The training stack

InBody + a spreadsheet

The scale lies. Body composition data does not. A monthly InBody scan plus a workout log in a plain spreadsheet beat every fancy tracking app I tried.

What I run: Track total body water, lean mass, and segmental fat over time. Decide off the trend line, not the number on a Tuesday.

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№ 05 The desk

Keychron + a 27-inch monitor

Mechanical keyboard for the hours, single big monitor for the focus. Nothing flashy, everything earns its spot.

What I run: A Keychron Q3 (browns), an LG ultrafine on an arm, a $20 Anker dock.

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№ 06 The shelf

A handful of books

A short, honest list. The ones that actually changed how I run a one-person company. The rest, I sold.

What I run: Working in Public · The Mom Test · Shoe Dog · The Pathless Path · Deep Work.

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