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Juan Carlos Christensen juanchristensen

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@boxabirds
boxabirds / .cursorrules
Last active February 13, 2026 12:46
Rock solid: turn Cursor into a rock-solid software engineering companion
# Project Policy
This policy provides a single, authoritative, and machine-readable source of truth for AI coding agents and humans, ensuring that all work is governed by clear, unambiguous rules and workflows. It aims to eliminate ambiguity, reduce supervision needs, and facilitate automation while maintaining accountability and compliance with best practices.
# 1. Introduction
> Rationale: Sets the context, actors, and compliance requirements for the policy, ensuring all participants understand their roles and responsibilities.
## 1.1 Actors
@ibireme
ibireme / kpc_demo.c
Last active February 12, 2026 22:04
A demo shows how to read Intel or Apple M1 CPU performance counter in macOS.
// =============================================================================
// XNU kperf/kpc demo
// Available for 64-bit Intel/Apple Silicon, macOS/iOS, with root privileges
//
//
// Demo 1 (profile a function in current thread):
// 1. Open directory '/usr/share/kpep/', find your CPU PMC database.
// M1 (Pro/Max/Ultra): /usr/share/kpep/a14.plist
// M2 (Pro/Max): /usr/share/kpep/a15.plist
// M3: /usr/share/kpep/as1.plist
@JaviLorbada
JaviLorbada / FRP iOS Learning resources.md
Last active December 1, 2025 21:05
The best FRP iOS resources.

Videos

@sleepdefic1t
sleepdefic1t / MACOS_CLANG_TIDY.md
Last active October 31, 2025 08:17
brew clang-tidy on macOS 
brew install llvm
ln -s "/usr/local/opt/llvm/bin/clang-format" "/usr/local/bin/clang-format"
ln -s "/usr/local/opt/llvm/bin/clang-tidy" "/usr/local/bin/clang-tidy"

use cmake file

  find_program(CLANG_TIDY_BIN clang-tidy)
 find_program(RUN_CLANG_TIDY_BIN /usr/local/Cellar/llvm/10.0.0_3/share/clang/run-clang-tidy.py)
@steipete
steipete / PSPDFUIKitMainThreadGuard.m
Last active October 30, 2025 15:53
This is a guard that tracks down UIKit access on threads other than main. This snippet is taken from the commercial iOS PDF framework http://pspdfkit.com, but relicensed under MIT. Works because a lot of calls internally call setNeedsDisplay or setNeedsLayout. Won't catch everything, but it's very lightweight and usually does the job.You might n…
// Taken from the commercial iOS PDF framework http://pspdfkit.com.
// Copyright (c) 2014 Peter Steinberger, PSPDFKit GmbH. All rights reserved.
// Licensed under MIT (http://opensource.org/licenses/MIT)
//
// You should only use this in debug builds. It doesn't use private API, but I wouldn't ship it.
// PLEASE DUPE rdar://27192338 (https://openradar.appspot.com/27192338) if you would like to see this in UIKit.
#import <objc/runtime.h>
#import <objc/message.h>
@eramdam
eramdam / .skhdrc
Created November 17, 2020 15:38
yabai/skhd config
#!/usr/bin/env sh
:: default : yabai -m config active_window_opacity 1; yabai -m config normal_window_opacity 1;
# Focus
shift + alt - home : yabai -m window --focus north
shift + alt - j : yabai -m window --focus north
shift + alt - end : yabai -m window --focus south
shift + alt - k : yabai -m window --focus south
shift + alt - delete : yabai -m window --focus west
@jagregory
jagregory / gist:710671
Created November 22, 2010 21:01
How to move to a fork after cloning
So you've cloned somebody's repo from github, but now you want to fork it and contribute back. Never fear!
Technically, when you fork "origin" should be your fork and "upstream" should be the project you forked; however, if you're willing to break this convention then it's easy.
* Off the top of my head *
1. Fork their repo on Github
2. In your local, add a new remote to your fork; then fetch it, and push your changes up to it
git remote add my-fork git@github...my-fork.git
@diegozr1
diegozr1 / fintech_api_list.md
Last active July 31, 2024 20:59
Curated list of Mexican Fintech APIs
@akhansari
akhansari / EsBankAccount.ts
Last active April 8, 2024 12:40
TypeScript prototype of the Decider pattern. (F# version: https://github.com/akhansari/EsBankAccount)
import * as assert from "assert";
/** Decider Pattern **/
type Transaction = {
amount: number
date: Date
}
type Deposited = Transaction & {
@randomsequence
randomsequence / StickyHeadersCollectionViewFlowLayout.m
Last active October 26, 2016 14:57
A subclass of UICollectionViewFlowLayout which has UITableView style sticky headers.
// StickyHeadersCollectionViewFlowLayout
//
// A subclass of UICollectionViewFlowLayout which has UITableView style sticky headers.
//
// This code is based on Evadne Wu's code^1, with the following changes:
//
// * Fixes a crash for sections with zero items
// * Adds support for UIScrollView's contentInset
// * Adds support for UICollectionViewFlowLayout's sectionInset
//