Ümit Ünal umit

Claude Code desktop notifications on macOS

Drop this into ~/.claude/settings.json (merge with existing keys — don't replace the whole file).

Option A: `osascript` (built-in, no install)

{
  "hooks": {
    "Stop": [

Available OS: windows, linux (probably darwin for macOS, not tested though)
Available arch: x86_64 (others not tested)

Note: You can try to mix and match values from both lists above, there is no guarantee of success though, even though it should very likely work.

PostgreSQL is Enough

See the new site: https://postgresisenough.dev

Basics

B-trees and CPU Caches

🗺🐘 1000+ PostgreSQL EXTENSIONs

This is a list of URLs to PostgreSQL EXTENSION repos, listed in alphabetical order of parent repo, with active forks listed under each parent.

⭐️ >= 10 stars
⭐️⭐️ >= 100 stars
⭐️⭐️⭐️ >= 1000 stars
Numbers of stars might not be up-to-date.

Log4J, JNDI, LDAP: JDK Changes Archeology

DISCLAIMER #1: THIS GIST IS INFORMATIONAL ONLY AND NOT A COMPLETE SECURITY GUIDANCE. Use this data with care, and please recheck the commits if you want to cite them as the source.

DISCLAIMER #2: JDK MITIGATIONS ARE NOT THE WHOLE STORY. THE REAL FIX IS IN LOG4J, UPGRADE TO AT LEAST 2.15.0 OR SET log4j2.formatMsgNoLookups=true. There might be more vectors than these mitigations cover. JDK mitigations shrink the attack surface, but they are not guaranteed to solve everything. I only checked this mitigates a few simple proof-of-concepts.

*TL;DR: Use JDK update releases that are less than 3 years old, and all known mitigations are there.

	#include <stdio.h>
	#include <stdlib.h>

	#define da_append(xs, x) \
	do { \
	if ((xs)->count >= (xs)->capacity) { \
	if ((xs)->capacity == 0) (xs)->capacity = 256; \
	else (xs)->capacity *= 2; \
	(xs)->items = realloc((xs)->items, (xs)->capacitysizeof((xs)->items)); \
	} \

	This uses llm.datasette.io and OpenAI.

	I use `git commit --template` to provide the output from the LLM to Git. This way, if you do not like the results, you
	can quit your editor and no commit will be made.

	# Shell function for generating a diff and editing it in your default editor:

	gcllm() {
	GIT_DIR="$(git rev-parse --git-dir)"
	TEMPLATE="$GIT_DIR/COMMIT_EDITMSG_TEMPLATE"

	FROM golang:1.21.0-bullseye as builder

	COPY . /workdir
	WORKDIR /workdir

	ENV CGO_CPPFLAGS="-D_FORTIFY_SOURCE=2 -fstack-protector-all"
	ENV GOFLAGS="-buildmode=pie"

	RUN go build -ldflags "-s -w" -trimpath ./cmd/app

	#!/bin/bash
	set -x

	function setenv-all-pods() {
	echo
	DEPLOYMENT_LIST=$(kubectl -n $1 get deployment -o jsonpath='{.items[*].metadata.name}')
	echo "Set Log4J setting for all pods by overriding LOG4J_FORMAT_MSG_NO_LOOKUPS with true."
	for deployment_name in $DEPLOYMENT_LIST; do
	kubectl -n $1 set env deployment $deployment_name LOG4J_FORMAT_MSG_NO_LOOKUPS="true"
	done