lanephillips
leighklotz
/ extract-bbox.py
Created
March 29, 2025 05:45
Extract tiles from a Zip of OSM tiles, for Meshastic, APRS, etc.
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| #!/usr/bin/env python3 | |
| # $ ./extract-bbox.py --zipfile OxedOSM_USA_0-13.zip --depth 13 --center-lat 37.123456 --center-lon -122.876543 --radius 10 | |
| import os | |
| import zipfile | |
| import argparse | |
| from math import floor, pi, tan, cos, log |
ayhc
/ miyota9075.md
Last active
May 20, 2026 23:21
List of watches with the Miyota 9075 GMT movement
reisenmachtfreude
/ debian11_install_geth.sh
Last active
January 12, 2025 00:57
Install geth on Debian 11 bullseye using ubuntu ppa
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| su # Run the following commands as root | |
| echo "deb http://ppa.launchpad.net/ethereum/ethereum/ubuntu bionic main | |
| deb-src http://ppa.launchpad.net/ethereum/ethereum/ubuntu bionic main" > /etc/apt/sources.list.d/ethereum-bioinc.list | |
| apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 2A518C819BE37D2C2031944D1C52189C923F6CA9 | |
| apt-get update | |
| apt-get install ethereum | |
| # Taken from https://linuxconfig.org/ethereum-mining-on-ubuntu-18-04-and-debian | |
| # GETH Manual does not explicitly mention Debian and Ubuntu method is failing https://geth.ethereum.org/docs/install-and-build/installing-geth |
christiangenco
/ ViewController.swift
Created
December 30, 2020 02:13
Minimal macOS Swift app to show webcam video in a custom NSView
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| import Cocoa | |
| import AVFoundation | |
| // inspiration: https://www.youtube.com/watch?v=1_PUdhLQsZQ | |
| class ViewController: NSViewController { | |
| @IBOutlet weak var videoView: NSView! | |
| private var cameraSession = AVCaptureSession() | |
| private var camera: AVCaptureDevice! |
cutiful
/ mastodon-ip.md
Last active
August 31, 2025 17:41
Detecting the real IP of a Cloudflare'd Mastodon instance
NB: This will not work for instances that proxy outgoing requests!
I wanted to find a way to detect the real IP address of a Mastodon/Pleroma/Misskey/etc instance hosted behind Cloudflare. How to do that? Well, it's federated, which means I can probably get it to send a request to a server of mine! And how to do that? I tried reading the ActivityPub spec. The following caught my attention:
Servers should not trust client submitted content, and federated servers also should not trust content received from a server other than the content's origin without some form of verification.
banjun
/ BlackHoleAVCaptureAudioPreviewOutput.swift
Created
April 18, 2020 17:50
Set AVCaptureSession output to BlackHole or another arbitrary device by an output device name
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| private let audioOutput: AVCaptureAudioPreviewOutput = { | |
| let audioOutput = AVCaptureAudioPreviewOutput() | |
| audioOutput.volume = UserDefaults.standard.volume | |
| struct Device { | |
| var name: String? | |
| var uid: String? | |
| } | |
| var devicesProperty = AudioObjectPropertyAddress(mSelector: kAudioHardwarePropertyDevices, mScope: kAudioDevicePropertyScopeOutput, mElement: kAudioObjectPropertyElementWildcard) | |
| var devicesSize: UInt32 = 0 |
jsharp83
/ CameraManager.swift
Last active
June 11, 2025 02:28
Basic camera code using AVCaptureSession in iOS
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| import Foundation | |
| import AVFoundation | |
| @objc | |
| protocol CameraCaptureDelegate: class { | |
| func captureVideoOutput(sampleBuffer: CMSampleBuffer) | |
| @objc optional func captureAudioOutput(sampleBuffer: CMSampleBuffer) | |
| } | |
| class CameraManager: NSObject { |
cellularmitosis
/ EmojiPointersDemo.swift
Created
August 15, 2018 18:11
Representing pointer values as emoji can be useful for "visually" debugging certain issues, like cell reuse, etc.
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| import UIKit | |
| @UIApplicationMain | |
| class AppDelegate: UIResponder, UIApplicationDelegate { | |
| var window: UIWindow? | |
| func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool { | |
| let window = UIWindow(frame: UIScreen.main.bounds) |
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| ## OS X files | |
| .DS_Store | |
| .DS_Store? | |
| .Trashes | |
| .Spotlight-V100 | |
| *.swp | |
| ## Xcode build files | |
| DerivedData/ | |
| build/ |
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| // Returns a random Emoji 🌿 | |
| extension String{ | |
| func randomEmoji()->String{ | |
| let range = 0x1F601...0x1F64F | |
| let ascii = range.startIndex + Int(arc4random_uniform(UInt32(range.count))) | |
| let emoji = String(UnicodeScalar(ascii)) | |
| return emoji | |
| } | |
| } |
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