The author discusses a long-term investing strategy focused on 3x daily leveraged Nasdaq 100 ETFs (TQQQ in the US and QQQ3 in the UK), which has yielded over 11,000% profit from 2013 to 2025 during backtesting. The strategy relies...
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Lambros Petrou is the author of a personal blog where he publishes his thoughts. He is associated with keywords such as datadog, amazon, codeguru, profiler, facebook, portfolio, programming, developer, coder, software engineer, ucy, and oxford.
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The article discusses the advantages and challenges of using Amazon DynamoDB, particularly its predictability and performance. It emphasizes the importance of designing a data model based on query patterns and highlights various r...
The text explains the concept of Durable Objects, which are virtual objects that are part of the Cloudflare global network infrastructure. It discusses how to manage and handle the lifecycle of Durable Objects, their similarities ...
0Large Language Model (LLM) prompting guides
2025-04-26 •
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The text is an overview of the Cloudflare Developer Platform, covering core services and how to integrate it with existing infrastructure. It also addresses concerns about the free tier and pricing compared to other platforms.
The article discusses symmetric encryption, envelope encryption, and key rotation using Go. It provides examples of code and explains the importance of data encryption keys and envelope encryption. It also discusses the use of Key...
The article discusses using Skybear.NET to detect changes in a website's text content and notify the user. It also explains how to use Hurl to inspect HTML and detect vCard updates on the PagerDuty website. The author provides a s...
The article discusses the use of Hurl to test the Cloudflare D1 REST API, showcasing various features and providing a concrete example. It includes a user journey, Hurl source, creating a new database, ensuring freshness, database...
The text describes a control and data plane architectural pattern for Durable Objects, which are built on-top of Cloudflare Workers. It explains how to separate the control plane from the data plane of an application to achieve gr...
The text is a love letter to Hurl, a command-line interface tool for testing and automating HTTP APIs. The author explains why they love Hurl and how it has made their end-to-end testing and HTTP automation needs easier and more e...
The text explains the deployment scripts used for applications on servers, emphasizing zero downtime. It covers the context, directory structure, systemd, Caddy, zero downtime deployments, and the deploy script. The author uses a ...
The article introduces Tiddlyflare, an open source TiddlyWiki hosting platform built with Cloudflare’s SQLite Durable Objects and Workers. It explains the architecture behind Tiddlyflare, the power and flexibility of Durable Objec...
Skybear.NET is a managed platform automating HTTP API testing using Hurl.dev plain text scripts. The recent updates include HTTP hook trigger, support for Hurl variables, migration from AWS Lambda to Fly.io, automatic persistence ...
The article discusses building a feature flag service on the Cloudflare Developer Platform using Cloudflare Workers and Durable Objects. It defines the problem, technical requirements, and traditional system design options. It als...
The article discusses Durable Objects (DO), a powerful offering by Cloudflare that provides unlimited single-threaded servers with durable storage across the world. It explains the use-cases, limitations, pricing, and the differen...
The article explains the concept of a 'Brag document' and how it relates to the author's 'Worklog document'. It discusses the various names and content of a Brag document, and emphasizes its importance in capturing career accompli...
Skybear.NET is a managed platform for HTTP API synthetics testing using Hurl.dev plain text scripts. The recent changes include the introduction of script triggers, a historical script runs listing page, and the launch of the prod...
Skybear.NET Scripts is a managed platform to automate HTTP website and API tests using Hurl.dev scripts. The recent changes include full CRUD management of scripts, updates to Hurl versions, new response outputs, access to histori...
The text discusses the importance of ownership and high agency in leadership and management. It emphasizes the significance of taking responsibility for success and failure, acknowledging mistakes, and developing long-term strateg...
The article discusses the author's preferred pricing model for SaaS products, comparing what he wants as a customer to what he plans to offer in his own business. He explains the benefits and drawbacks of usage-based pricing and p...
Skybear.net Scripts is a managed platform to execute Hurl.dev scripts. The platform has been rebranded to Skybear.net and now includes user accounts, script management, and new features such as SSO authentication, teams and organi...
Hurl Webscripts is a managed platform for executing Hurl.dev scripts, allowing users to send HTTP/cURL requests, do assertions on responses, and pipeline consecutive requests. The platform has recently released its initial version...
The text explains how to find listening and open ports in Linux using the commands lsof and netstat. It provides detailed information about the commands and their options.
0How to find your public IP | Lambros Petrou
2023-12-04 •
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