hafidbuilds

Coding Agent Sandboxes — Comprehensive List

Compiled from awesome-lists (restyler/awesome-sandbox, webcoyote/awesome-AI-sandbox, bureado/awesome-agent-runtime-security) and a survey of vendor blogs / field guides published through 2026. Grouped by isolation primitive and then by deployment model.

1. OS-level primitives (no container, no VM)

These rely on kernel/userland features to constrain a normal host process. Lowest overhead, weakest boundary.

macOS Seatbelt / sandbox-exec — Apple's TrustedBSD-based MAC framework. Used directly by Codex CLI, Gemini CLI, and underneath Anthropic's srt.
Linux Landlock — Unprivileged filesystem/network LSM; default backend for Codex CLI on Linux.

LLM Wiki

A pattern for building personal knowledge bases using LLMs.

This is an idea file, it is designed to be copy pasted to your own LLM Agent (e.g. OpenAI Codex, Claude Code, OpenCode / Pi, or etc.). Its goal is to communicate the high level idea, but your agent will build out the specifics in collaboration with you.

The core idea

Most people's experience with LLMs and documents looks like RAG: you upload a collection of files, the LLM retrieves relevant chunks at query time, and generates an answer. This works, but the LLM is rediscovering knowledge from scratch on every question. There's no accumulation. Ask a subtle question that requires synthesizing five documents, and the LLM has to find and piece together the relevant fragments every time. Nothing is built up. NotebookLM, ChatGPT file uploads, and most RAG systems work this way.

Zed Vim Mode Cheat Sheet

Zed's Vim mode replicates familiar Vim behavior while integrating modern features like semantic navigation and multiple cursors. This cheat sheet summarizes essential shortcuts and settings to help you navigate and edit code efficiently in Zed.

Enabling/Disabling Vim Mode

Enable/Disable Vim Mode: Open the command palette and use Toggle Vim Mode.
This updates your user settings: "vim_mode": true or false.

Next.js client-only SPA example

Made this example to show how to use Next.js router for a 100% SPA (no JS server) app.

You use Next.js router like normally, but don't define getStaticProps and such. Instead you do client-only fetching with swr, react-query, or similar methods.

You can generate HTML fallback for the page if there's something meaningful to show before you "know" the params. (Remember, HTML is static, so it can't respond to dynamic query. But it can be different per route.)

Don't like Next? Here's how to do the same in Gatsby.

How to Successfully Publish Your App on the App Store or Google Play

As someone who has released many apps starting in 2015 using frameworks such as Cordova and Ionic, and more recently using React Native and Expo, I have learned that the rules for publishing apps can change frequently and can sometimes be challenging to navigate. With that in mind, I want to provide a brief guide to help others navigate the process. While this guide may not cover every aspect of publishing an app, it does cover general tips and information that should be useful for anyone looking to release their app on the App Store or Google Play.

Metadata

Keywords, Description, Screenshots, App Name, Promo Videos

There are significant differences between Apple and Google when it comes to metadata. Apple is generally stricter than Google, so it is advisable to follow Apple's guidelines to ensure the best chances of success on both platforms. Here are some tips to keep in mind:

Keep your screenshots and promo videos separat

Beers

Beer Temple - https://goo.gl/maps/CyZdYPaXedo
Proeflokaal Arendsnest - https://goo.gl/maps/DQp4UgbsYJ42 , https://www.tripadvisor.com/Attraction_Review-g188590-d523492-Reviews-Beer_Tasting_Room_Arendsnest-Amsterdam_North_Holland_Province.html
Brouwerij (Modern brewery next to a windmill producing organic blonde & dark beers & running short tours. ) - https://goo.gl/maps/8Ff7BAs7aVD2, http://www.brouwerijhetij.nl/
Bunkerbier - http://www.bunkerbier.org/
Distilleerderij 't Nieuwe Diep - https://goo.gl/maps/kQGW9k7VSL62 Bierfabriek - https://goo.gl/maps/jQo94L8HPiz

Coffee places

Bocca Coffee - https://goo.gl/maps/PpcoZFrVeM52

	import React, { useState, useMemo } from "react"
	import { calculateTotals } from "./utils"

	export default function SelectTickets({
	context: { workshopData, subscriberCode },
	send
	}) {
	let initialTicketsToPurchase = useMemo(
	() =>
	workshopData.ticketTypes.reduce((ticketsToPurchase, type, index) => {

	#!/bin/bash

	usage() { echo "usage: --coursename [--coursename \"build-a-react-app-with-redux\"] --type [--type \"courses\|lessons\"]" 1>&2; exit 1; }

	OPTS=$(getopt -o c:t: --long coursename:,type: -n 'download_egghead_videos.sh' -- "$@")

	if [ $? != 0 ] ; then echo "Terminating..." >&2 ; exit 1 ; fi

	eval set -- "$OPTS"

	/**
	* Multi-filter an array of objects
	* @param {Array} array : list of elements to apply a multiple criteria filter
	* @param {Object} filters: Contains multiple criteria filters by the property names of the objects to filter
	* @return {Array}
	*/
	function multiFilter(array, filters) {
	let filterKeys = Object.keys(filters);
	// filters all elements passing the criteria
	return array.filter((item) => filterKeys.every((key) => (filters[key].indexOf(item[key]) !== -1)));

	type FilterOperator = 'AND' \| 'OR';
	type FiltersBy<T> = {
	[K in keyof T]?: (value: T[K]) => boolean;
	};

	/**
	* Factory function that creates a specialized function to filter
	* arrays, by validating all filters (AND operator),
	* or validating just one of the filters (OR operator).
	* @param operator Method to validate all filters: AND, OR