Nate Berkopec nateberkopec

Plan: Yabeda Monitoring System Adapter

Goal

Add an optional Yabeda adapter so that users who define metrics via Yabeda's DSL can have those metrics sent to CloudWatch through the existing Reporter infrastructure (async batching, StatisticSet aggregation, queue overflow protection, high-resolution support).

This gem does not collect metrics via Yabeda. The existing Puma/Sidekiq/Rack/ActiveJob

Worker TERM/restart benchmark (Docker + k6)

This benchmark reproduces the scenario discussed in chat:

4 Puma workers
open-model traffic at 12 req/s (k6 constant-arrival-rate)
synthetic Rack app with ~250ms service time
service alternates CPU and IO slices randomly every ~10ms
compare threads=5 vs threads=25
during traffic: kill one worker, wait for restart, let it serve ~5s, then kill a different worker (round-robin)

Unslopper local run notes

This repo is just a scratchpad for running the Unslopper model locally with llama.cpp.

What worked

Install llama.cpp via Homebrew.
Use the GGUF Q8_0 quant (the bf16 repo is too large for typical Mac memory).
Use llama-completion with a Qwen-style chat template prompt file and --no-conversation so it does a single completion and exits.
Redirect logs away from stdout so the output file is clean.

Protecting Against Autonomous Agent rm -rf Commands

Protecting Against Agent `rm -rf` Commands

AI coding agents can run shell commands. Sometimes they run rm -rf by mistake. This deletes files forever. While of course I always read and approve all tool calls manually, by hand, and never let my agents work except under direct supervision 100% of the time, sometimes I miss things.

How It Works

Hooks catch rm -rf before it runs
Refuse the command with a clear error telling you to use trash

Puma JSON Logging Demo

This demo shows how to achieve JSON-formatted boot messages from Puma using existing configuration options. This is in response to GitHub Issue #3865.

Summary

Puma already supports custom log formatting via two DSL options:

log_formatter - A block that transforms each log message string

	#!/bin/bash
	# After converting PNGs to JPEGs, update all references in the codebase.
	# Parses git status for deleted .png / new .jpg pairs and does a global find-and-replace.
	# Usage: ./rename_png_refs.sh [directory]

	set -euo pipefail

	DIR="${1:-.}"
	DRY_RUN="${DRY_RUN:-false}"

	#!/bin/bash
	# After converting PNGs to JPEGs, update all references in the codebase.
	# Parses git status for deleted .png / new .jpg pairs and does a global find-and-replace.
	# Usage: ./rename_png_refs.sh [directory]

	set -euo pipefail

	DIR="${1:-.}"
	DRY_RUN="${DRY_RUN:-false}"

	#!/bin/bash
	# Convert PNGs > 100KB to optimized JPEGs for Cloudflare Polish webp conversion
	# Usage: ./png_to_jpeg.sh [directory]
	# Requires: ImageMagick (convert), jpegoptim

	set -euo pipefail

	DIR="${1:-.}"
	QUALITY=85
	MIN_SIZE_KB=100

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

	usage() {
	echo "heroku-inventory: Catalog Heroku resources" >&2
	echo "" >&2
	echo "Usage:" >&2
	echo " heroku-inventory --team <team-name>" >&2
	echo " heroku-inventory --app <app-name>" >&2
	echo "" >&2

	FROM ruby:3.3-slim

	RUN apt-get update \
	&& apt-get install -y --no-install-recommends build-essential \
	&& rm -rf /var/lib/apt/lists/*

	RUN gem install puma -v 6.4.2

	WORKDIR /app
	COPY config.ru puma.rb /app/