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RandyMcMillan / utc_consensus.rs
Last active February 22, 2026 22:26 — forked from rust-play/playground.rs
utc_consensus.rs
use chrono::{DateTime, Duration, Utc};
#[derive(Debug, Clone, Copy)]
pub struct Estimation {
pub d: f64, // Difference in seconds
pub a: f64, // Uncertainty
}
pub fn estimate_offset(s: DateTime<Utc>, r: DateTime<Utc>, c: DateTime<Utc>) -> Estimation {
// d = c - (r + s) / 2
@RandyMcMillan
RandyMcMillan / byz_time.rs
Last active February 22, 2026 22:29 — forked from rust-play/playground.rs
byz_time.ra
use std::time::Instant;
#[derive(Debug, Clone, Copy)]
pub struct Estimation {
pub d: f64,
pub a: f64,
}
pub fn estimate_offset(s: f64, r: f64, c: f64) -> Estimation {
Estimation {
@RandyMcMillan
RandyMcMillan / compute_softmax_attention.rs
Last active February 19, 2026 23:41 — forked from rust-play/playground.rs
compute_softmax_attention.rs
use nalgebra::{DMatrix, DVector};
// Import the Rng trait so that .gen() is available on thread_rng()
use rand_0_8_5::Rng;
/// 1. Computes standard Softmax Attention Y
fn compute_softmax_attention(q: &DMatrix<f64>, k: &DMatrix<f64>, v: &DMatrix<f64>) -> DMatrix<f64> {
let mut scores = q * k.transpose();
for i in 0..scores.nrows() {
let mut row = scores.row_mut(i);
@RandyMcMillan
RandyMcMillan / nonce_gaps.rs
Last active February 18, 2026 13:15 — forked from rust-play/playground.rs
nonce_gaps.rs
fn main() {
let mut nonces = vec![0u128];
let mut counter = 0u64;
nonces.pop();
// First Gap: 1.5 x 10^9 to 2.0 x 10^9
//counter += (2.0e9 - 1.5e9) as u64;
for nonce in 1_500/*_000_000*/..=3_000/*_000_000*/ {
nonces.push(nonce*1_000_000);
counter = counter+1;
@RandyMcMillan
RandyMcMillan / lamport_with_breach.rs
Last active February 16, 2026 17:58 — forked from rust-play/playground.rs
lamport_with_breach.rs
use sha2::{Digest, Sha256};
use std::collections::HashSet;
use rand_0_8_5/*_0_9_2*/::{RngCore, thread_rng};
/// For a 256-bit security level, we need 256 pairs of preimages (512 total).
const BITS: usize = 256;
/// The Private Key: Two lists (Secret-0 and Secret-1).
struct PrivateKey {
pairs: [[[u8; 32]; BITS]; 2],
@RandyMcMillan
RandyMcMillan / detach.js
Created February 15, 2026 14:30 — forked from piscisaureus/detach.js
detach.js
var spawn = require('child_process').spawn;
// spawn_detached(file, [args = []], [options = {}], [callback]);
function spawn_detached(file, args, options, callback) {
if (arguments.length == 2 &&
typeof args == 'function') {
callback = arguments[1];
args = undefined;
}
@RandyMcMillan
RandyMcMillan / microgpt.py
Created February 15, 2026 14:11 — forked from karpathy/microgpt.py
microgpt
"""
The most atomic way to train and inference a GPT in pure, dependency-free Python.
This file is the complete algorithm.
Everything else is just efficiency.
@karpathy
"""
import os # os.path.exists
import math # math.log, math.exp
@RandyMcMillan
RandyMcMillan / mini_gpt.rs
Last active February 14, 2026 20:57 — forked from rust-play/playground.rs
mini_gpt.rs
use std::env;
use std::fs::File;
use std::io::{BufRead, BufReader, Read, Write, Result};
/* ------------------------------------------------------------------ */
/* Model hyper-parameters */
/* ------------------------------------------------------------------ */
const N_EMBD: usize = 32;
const N_HEAD: usize = 4;
const N_LAYER: usize = 1;
@RandyMcMillan
RandyMcMillan / peace_effort.rs
Last active February 12, 2026 03:51 — forked from rust-play/playground.rs
peace_effort.rs
// Dependencies used: tokio, hyper, hyper-util, http-body-util, serde, serde_json, url
use http_body_util::Full;
use hyper::body::Bytes;
use hyper::server::conn::http1;
use hyper::service::service_fn;
use hyper::{Request, Response, StatusCode};
use hyper_util::rt::TokioIo;
use std::net::SocketAddr;
use std::sync::atomic::{AtomicBool, Ordering};
use std::sync::Arc;
@RandyMcMillan
RandyMcMillan / artificial_neuron.rs
Last active February 18, 2026 13:15 — forked from rust-play/playground.rs
artificial_neuron.rs
use ndarray::Array1;
use rand::Rng;
// The playground often requires RngExt for sampling distributions
use rand::distr::{Distribution, StandardUniform};
#[derive(Debug)]
enum Activation {
Logistic,
ReLU,
Linear,