Frank A. Krueger praeclarum

I am a mobile app developer specializing in iOS and .NET programming. I am into graphics, AI, robotics, and programming languages.

praeclarum / backup-vscode-chats.sh

Last active April 30, 2026 03:33

Script to copy VS Code AI chats to a backups directory

	#!/usr/bin/env bash
	# Copy all VS Code chatSessions folders to a backup location, preserving timestamps.

	set -euo pipefail

	SRC="$HOME/Library/Application Support/Code/User/workspaceStorage"
	DEST="$HOME/Dropbox/Backups/VSCodeChatSessions"

	if [ ! -d "$SRC" ]; then
	echo "Source directory not found: $SRC" >&2

praeclarum / clean_bin_obj.fish

Last active April 18, 2026 05:45

Fish function to recursively delete all bin and obj files in a directory

	function clean_bin_obj
	argparse --name clean_bin_obj 'n/dry-run' -- $argv
	or return $status

	set -l dry_run 0
	if set -q _flag_n
	set dry_run 1
	end

	set -l roots $argv

praeclarum / fnn.py

Created January 28, 2026 18:19

Frank's little neural network library

	import math
	from collections import namedtuple
	from typing import Any, Callable, Dict, Optional
	import json
	import torch
	from torch import Tensor
	import torch.nn as nn
	import torch.nn.functional as F
	import torchvision.transforms.v2

praeclarum / Globe.cs

Created April 9, 2023 16:02

Renders a 3D globe using SHP files

	class Globe : Scene
	{
	const double PI = Math.PI;
	const double DegToRad = PI / 180.0;

	public const double EarthRadius = 2.0;
	const double EarthFlattening = 1.0/298.257223563;
	const double EarthFF = (1.0 - EarthFlattening) * (1.0 - EarthFlattening);

	public const double CameraDistance = 50.0;

praeclarum / OpenIVProcNames.txt

Created March 7, 2023 00:40

List of procedures in the OpenIV app

	$00965170 Rage.AI.NavigationMesh..navSectorData
	$009687CC Rage.AI.NavigationMesh.navAABB.GetMax
	$009687F8 Rage.AI.NavigationMesh.navAABB.GetMin
	$00967C18 Rage.AI.NavigationMesh.navMesh.addInnerBlocks
	$00967CD0 Rage.AI.NavigationMesh.navMesh.Create
	$00967E8C Rage.AI.NavigationMesh.navMesh.getCenterPoint
	$00968524 Rage.AI.NavigationMesh.navPoly.getVertexCount
	$009685B0 Rage.AI.NavigationMesh.navPoly.setVertexCount
	$0096D4D8 Rage.Audio2.IO.Bank..TRageAudio2BankContainer
	$00977C70 Rage.Audio2.IO.Container..TBaseRageAudio2File

praeclarum / mactestflight.yaml

Created January 5, 2023 19:22

GitHub Actions to build a Mac AppStore app

	- name: Import Apple Certificate
	uses: apple-actions/import-codesign-certs@v1
	with:
	create-keychain: true
	keychain-password: ${{ secrets.APPSTORE_CERTIFICATE_P12_PASSWORD }}
	p12-file-base64: ${{ secrets.APPSTORE_CERTIFICATE_P12 }}
	p12-password: ${{ secrets.APPSTORE_CERTIFICATE_P12_PASSWORD }}

	- name: Import Mac Installer Certificate
	uses: apple-actions/import-codesign-certs@v1

praeclarum / CoreMLImport.fs

Created March 10, 2022 01:48

Shows how to import CoreML files using F# and the CoreML Protocol Buffers

	module Neural.CoreMLSupport

	open Data
	open Neural.Layers
	open CoreML.Specification
	open FSharp.NativeInterop

	#nowarn "9"

	let rec modelDataFromCoreML (min : System.IO.Stream) : ModelData =

praeclarum / MPSGraphMnistTest.cs

Created March 3, 2022 22:22

Translation of Apple's MPSGraph MNIST sample to Xamarin.iOS

	#nullable enable

	using System;
	using System.Collections.Generic;
	using System.IO;
	using System.Net.Http;
	using System.Threading;
	using System.Threading.Tasks;
	using Foundation;
	using Metal;

praeclarum / Database.fs

Created February 16, 2022 17:11

An immutable database with reference entities, cascading deletes, undo buffers, serialization, and reactive variables

	namespace Neural

	type Id = System.String
	type Id<'T> =
	\| Id of Id
	override this.ToString () = match this with Id id -> id

	type IEntity =
	abstract References : Id seq with get
	abstract DeleteReference : Id -> IEntity option

praeclarum / build-net6-apple.yml

Last active January 29, 2022 15:35

GitHub jobs to build and deploy .NET 6 apps multi-targeting iOS and macOS