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Products, marketing, tools: I test a lot, sum up what works, you avoid my mistakes.
Projects
Build articles
An OpenClaw alternative is worth switching to only if it keeps the part you wanted, an agent that acts while you are asleep, and drops the part that should worry you, one always-on assistant holding every credential you own. Three shapes are on offer: another general assistant, a self-hosted workflow runner, or a narrow agent with a scheduled trigger and a single exit door.
Base44 and Lovable both turn a prompt into a working app on day one, so day one is not where the choice gets made. It gets made by who owns the backend: Base44 keeps your database and auth inside its own platform, while Lovable writes a React codebase you own and connects it to a Supabase project you control.
The right Repl.it alternative depends on which of Replit's four jobs you are replacing: the agent that writes the code, the browser environment, the always-on hosting with a public URL, and the bundled Postgres. Most disappointing switches come from swapping one of the four and discovering the other three were the part you actually relied on.
Marketing articles
LinkedIn's Post Inspector, at linkedin.com/post-inspector, reads a URL the way LinkedIn's crawler does and clears the preview LinkedIn had stored for it, so your next share picks up the tags currently on the page. That is the whole job: it refreshes, it does not validate. When the preview is still wrong after you run it, the cache was never the problem. The image you shipped is.
Follow up on a cold email only when you can add one fact that did not exist when you sent the first one. Not a bump, not a polite reminder that you are still waiting: something the reader did not know before. Two follow-ups written that way beat six written in advance, because a sequence drafted before you send can only ever report that time has passed.
The Tim Ferriss cold email template comes from his 2008 post on emailing busy people, and it is short by design: name something specific the person made, say who you are in one clause, prove you already did the work, ask one question they can answer in two sentences, and give them an easy out. The structure is public. The reason it works is not.
Brands I back
AgentMail
Email infrastructure for AI agents: create an inbox by API, send and receive, and let an agent act on structured messages.
Mailivery
Email warm up as a service: automated real conversations that build a sending domain's reputation before campaigns need it.
PostHog
Open source product analytics: events, session replay, feature flags, A/B tests and surveys in one platform, with a real free tier.


