peterc

#!/bin/bash
# Ingest new Maildir messages into ~/mail.db, then delete the files.
#
# schedule in cron with something like:
# * * * * * /home/exedev/bin/fetch-mail.sh >> /home/exedev/.fetch-mail.log 2>&1
set -euo pipefail

DB="$HOME/mail.db"
NEW="$HOME/Maildir/new"
LOCK="$HOME/.fetch-mail.lock"

peterc

"""Reusable LED control for the Akai MPD218 over USB MIDI.

    from mpd218 import pad_on, pad_off, all_on, all_off
    pad_on(13)        # light pad 13
    pad_off(13)
    all_on(); all_off()

Pad indices are 1..16 (bottom-left = 1, top-right = 16, matching the device's default
note mapping of pads 1..16 -> MIDI notes 36..51 on channel 10).
"""

peterc

Prompt: bootstrap an NES dev environment with an agent-controlled emulator

You are a coding agent on macOS. Your job is to set up an environment where you can build NES (Nintendo Entertainment System) ROMs in C, run them in an emulator, and drive that emulator from the command line so you can iterate without a human pressing buttons. Aim for the state described below; report back at each milestone with what you did and what is verified.

Target environment

By the end you should have:

1. An emulator running. FCEUX 2.6+ installed and able to load .nes ROMs. It exposes a Lua scripting API; that API is how you will control it programmatically.
2. A C toolchain for the 6502. cc65 (which provides cc65, ca65, ld65, cl65) and a copy of Shiru/clbr's NESLib, a small C-callable helper library that wraps the bits of the NES hardware most games need (palettes, sprites, controllers, PPU, frame waits, optional famitone2 audio).

peterc

require "informers"

MODEL = "Snowflake/snowflake-arctic-embed-s"

embedder = Informers.pipeline(
  "embedding",
  MODEL,
  dtype: "int8",
  device: "cpu",
)

peterc

import TinyTTS from 'tiny-tts';

const tts = new TinyTTS();

await tts.speak('Hello, welcome to Node Weekly.', {
  output: 'output.wav',
});

await tts.dispose();

peterc

# Fetch X bookmarks and output them as CSV.
#
# On first run, opens a browser for OAuth 2.0 authorization and stores
# tokens in tokens-USERNAME.json. Subsequent runs reuse (and auto-refresh)
# those tokens, so no further login is needed. Multiple users are supported
# via separate token files.
#
# Usage:
#   ruby bookmarks.rb [--username USER] [--limit N] [--per-call N]
#

peterc

#!/usr/bin/env python3
import json
import os
import sys

from mistralai import Mistral


def format_time(seconds):
    minutes = int(seconds) // 60

peterc

#!/usr/bin/env bash
set -euo pipefail

if [ -z "${OPENAI_API_KEY:-}" ]; then
  echo "Error: OPENAI_API_KEY is not set" >&2
  exit 1
fi

if [ $# -ne 1 ] || [ ! -f "$1" ]; then
  echo "Usage: transcribe <audio-file>" >&2

peterc

#!/usr/bin/env ruby
# A macOS GUI app written in Ruby, calling libobjc directly via Fiddle.
# No gems. No Objective-C. Just Ruby and the runtime.

require "fiddle"

OBJC   = Fiddle.dlopen("/usr/lib/libobjc.A.dylib")
APPKIT = Fiddle.dlopen("/System/Library/Frameworks/AppKit.framework/AppKit")

# Core runtime functions

peterc

// A macOS GUI app written in pure C, using the Objective-C runtime directly.
// No Objective-C syntax anywhere. Just raw objc_msgSend and runtime calls.
// This is cursed. Enjoy.

// Compile with clang -Wall -Wextra -o hello_runtime hello_runtime.c \
//                    -framework Cocoa -lobjc

#include <objc/objc.h>
#include <objc/message.h>
#include <objc/runtime.h>