Planet I Kiru

How to Use GPG: A Practical Guide to Key Management, Encryption, and Signing

Tue, 25 Aug 2026 20:04:17 +0800

GPG (GNU Privacy Guard) is an implementation of PGP and is widely used in the field of cryptography. Its fundamental principle is asymmetric cryptography, also known as public-key cryptography. This article will not delve deeply into its underlying principles but will instead introduce its basic usage. The scenarios described below are those I might encounter in my daily work.

Creating a Key Pair

Since GPG is based on asymmetric cryptography technology, the first step in using it is to generate a key pair: a public key and a private key:

How I Configure OpenCode: AGENTS.md, Permissions, and More

Sun, 23 Aug 2026 18:32:36 +0800

I’ve been fine-tuning OpenCode’s various configurations for some time now. In this article, I’ll go over my settings.

AGENTS.md

AGENTS.md is probably the most important part of the configuration. This file serves as the soul and memory of OpenCode, and is permanently preloaded into every OpenCode conversation.

Two Prohibitions

Initially, I only specified two prohibitions in this file: 1. Any dangerous commands must first be approved by the user; 2. Uploading local personal data, files, etc., to the internet or external services without the user’s consent is strictly prohibited. I believe these two points are most important and should be set first. Since I’ve installed OpenCode on my local machine—which is convenient but also poses security risks—although mainstream AI agents generally handle security quite well these days, explicitly adding these prohibitions should provide even greater assurance. Many people recommend installing personal assistant AI tools like Hermes on a VPS or a dedicated machine, which is indeed safer but also introduces inconvenience and increased costs. I currently don’t feel this is necessary; all my AI agents are installed locally, and I’ve added these two prohibitions to each of them—I haven’t encountered any serious security issues so far.

5 Ways AI Has Actually Saved Me Time on My Computer

Thu, 13 Aug 2026 18:35:11 +0800

Since OpenAI burst onto the scene at the end of 2022, the world seems to have entered the AI era. People’s reactions—ranging from initial disdain for AI to later astonishment at its capabilities and fear that it might replace humans—are all emotional and not entirely rational. AI cannot fundamentally alter the nature of the world; after all, it is ultimately just a man-made product, and nothing created by humans can fundamentally replace what nature has created. But that doesn’t mean it’s useless—it’s actually quite powerful, especially in areas where it excels, particularly in computing. Because it’s essentially a computer program, having a computer handle itself is the perfect fit!

I Tried “Get-Paid-To” Websites for Months, Here’s What I Learned

Mon, 03 Aug 2026 18:11:48 +0800

This year, I decided to make money online.

My first idea was to build an independent website and monetize it through blogging. I actually started doing it, but soon I got pulled toward something else: GPT sites—Get-Paid-To websites.

Yes, I know. It was probably not the best decision. I understood from the start that the earning potential from GPT websites was far lower than building a proper blog. But I also knew that blogging is a slow grind, one that can easily earn nothing for months. And I wanted to see actual cash land in my account before my motivation ran dry.

Privacy Policy

Sat, 01 Aug 2026 16:20:06 +0800

Thank you for visiting my site. Your privacy is critically important to me. This Privacy Policy explains how I treat user information on this website.

1. Information the Site Collect (Current Status)

Currently, this website is a static blog generated using Hugo.

No Cookies: I do not deploy any cookies, tracking pixels, or similar technologies to monitor your browsing behavior.
No User Accounts: There is no registration or login functionality on this site.
No Comments: All comment sections are temporarily disabled; therefore, I do not collect any names, email addresses, or text inputs from visitors.

In short, I do not actively collect, store, or process any personally identifiable information (PII) from my readers at this moment.

About

Sat, 01 Aug 2026 16:11:18 +0800

Coming up with an online username is a painful process. Ideally, the name should be easy to remember and distinctive—and, in many cases, unique! But with the internet having developed over so many years, far too many usernames have already been taken. After thinking about it for a long time, I realized that combining English with a less common language—like Japanese—might make it easier. “Planet + いきる”—planet ikiru, meaning “living on a planet”—and just like that, the name was born. What an ordinary name! I thought. With a slight tweak—Planet I Kiru, or Planet I きる—it could mean “I cut through the planet” or “I carve out the planet.” It sounds a bit nonsensical, but either way, it’s definitely more unique :). In fact, by this point, the name had already come to carry a deeper meaning. But I won’t go into that here.