Andrew Gazelka andrewgazelka

Run ordinary Rust through a JIT

A small demo of rustc's experimental Cranelift JIT mode, plus the benchmark behind the graphic. It runs a normal .rs file: rustc parses and checks it, then Cranelift generates native machine code in memory and executes it. No standalone executable is emitted in JIT mode.

This reproduction targets Apple Silicon macOS. It was measured on an Apple M5 Max. The benchmark uses macOS library paths and system tools; it is not a cross-platform harness.

Dia: CDP-created tabs are live & drivable but invisible in the tab UI

Tabs created over the Chrome DevTools Protocol (Target.createTarget, or window.open from a page that is itself driven over CDP) never appear in Dia's tab strip / sidebar. They are fully live and remote-controllable, just invisible. Only navigating an existing tab shows up.

It reproduces from a raw external CDP client, not from a browser extension: chrome.tabs.create / window.open from an extension go through Dia's own tab model (the UI observes them), but Target.createTarget from a debugger client

Rust Code Style Guide

Error Handling

Use eyre with bail! for early returns
ALWAYS add error context with wrap_err() at the callee (where error occurs), not caller
Add context even if it feels verbose - clarity > brevity

Control Flow

Early return pattern everywhere - fail fast
Maximum 3 levels of nesting - refactor if deeper

by default every cargo build recompiles EVERYTHING to do with sql...
let's improve speed by 2 orders of magnitude
By default make export SQLX_OFFLINE=true, i.e., in config.fish/zsh/bash
- open RustRover from terminal rustrover . you might have to add rustrover to path. just make sure it opens with default environment SQLX_OFFLINE=true.
whenever you change a query in the dir of crate run SQLX_OFFLINE=false cargo sqlx prepare -- --tests from CLI to update queries.
now we will only recompile query-related stuff as needed (when we update a query)

	<!DOCTYPE html>
	<html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width,initial-scale=1">
	<title>afore.vc — TLS / DNS diagnosis</title>
	<style>
	:root{color-scheme:light dark}
	body{font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;max-width:820px;margin:2rem auto;padding:0 1rem;line-height:1.5}
	h1{font-size:1.5rem;margin-bottom:.2rem} h2{font-size:1.1rem;margin-top:1.8rem;border-bottom:1px solid #8884;padding-bottom:.2rem}
	code,pre{font-family:ui-monospace,SFMono-Regular,Menlo,monospace}
	pre{background:#8881;padding:.75rem;border-radius:6px;overflow-x:auto;font-size:.85rem}
	table{border-collapse:collapse;width:100%;margin:.5rem 0;font-size:.9rem}

	<!doctype html>
	<html lang="en">
	<head>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width, initial-scale=1">
	<title>Mesh · an agent trust & bounty network</title>
	<style>
	:root{
	--bg:#ffffff; --fg:#1f2328; --muted:#656d76; --faint:#8b949e;
	--line:#e4e7eb; --card:#fbfcfd; --accent:#3b82f6; --accent-weak:#dbeafe;

	<!doctype html>
	<html lang="en">
	<head>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width, initial-scale=1">
	<title>Mesh · an agent trust & bounty network</title>
	<style>
	:root{
	--bg:#ffffff; --fg:#1f2328; --muted:#656d76; --faint:#8b949e;
	--line:#e4e7eb; --card:#fbfcfd; --accent:#3b82f6; --accent-weak:#dbeafe;

	<!doctype html>
	<html lang="en">
	<head>
	<meta charset="utf-8">
	<title>ix Minecraft plugin hot reloading on NixOS</title>
	<style>
	:root {
	color-scheme: light dark;
	--bg: #0f1115;
	--panel: #161a22;

	# run in parallel
	rp() {
	name=$(getuuid)
	tmux new-session -d -s $name

	# Get the total number of items.
	total=${#items[@]}

	# Initialize a counter.
	count=1