rasmusmerzin

export function mapRecord<K extends string, V1, V2>(
  input: Record<K, V1>,
  mapper: (value: V1, key: K) => V2,
): Record<K, V2> {
  const entries = Object.entries(input).map(([key, value]) => [key, mapper(value as V1, key as K)]);
  return Object.fromEntries(entries);
}

rasmusmerzin

#!/usr/bin/env bash
# Usage: rgb [Red 0-5] [Green 0-5] [Blue 0-5]

c=$((16+(${1:-0}*36)+(${2:-0}*6)+(${3:-0}*1)))
if [[ -t 1 ]]
then printf '\e[38:5:%dm%-3d\e[m\n' $c $c
else echo $c
fi

rasmusmerzin

# Implemented by [Brave Ask](https://ask.brave.com)
# PS! Unchecked! Read before executing!
# make.R - Minimal make-like system for R

library(digest)

make <- function(target, rules) {
  if (target %in% names(rules$files)) {
    file <- rules$files[[target]]
    deps <- file$depends

rasmusmerzin

Archived chat with Brave Ask on 2026-02-05

> 4-vector potential eli5

The 4-vector potential is a way of combining electric and magnetic fields into a single mathematical object that works nicely with Einstein's relativity.

Think of it like this: Instead of treating electric potential (voltage) and magnetic potential separately, we bundle them together into one 4-dimensional package. It has:

• One time component: the regular electric potential (φ) you know from circuits
• Three space components: the magnetic vector potential (A), which describes magnetic fields

rasmusmerzin

#titlebar,
#toolbar-menubar {
  display: none !important;
}

#TabsToolbar {
  --height: 42px;
  height: var(--height) !important;
  transition: margin-bottom 200ms !important;
  &:not(:has(#tabbrowser-arrowscrollbox tab ~ tab)) /* single tab */ {

rasmusmerzin

export interface Observer<T> {
  update(value: T): void;
}

export interface Observable<T> {
  observe(observer: Observer<T>): Abortable;
}

export interface Abortable {
  abort(): void;

rasmusmerzin

#!/bin/bash
set -euo pipefail

main() {
	install_deps
	write_config
	reload_wlmod
	connect_wifi
	echo SUCCESS
}

rasmusmerzin

[p]=document.getElementsByTagName("player")
for(let parent=p.parentElement;parent;parent=parent.parentElement)
for(let c of parent.children) (c!=p&&!c.contains(p)) && (c.style='pointer-events:none!important;z-index:1'))
p.style='z-index:99;position:fixed;left:50%;top:50%;translate:-50% -50%;max-width:100vw;max-height:100vh;width:100%'

rasmusmerzin

#!/usr/bin/env bash

[[ -z "$PORT" ]] && PORT=18181
[[ -z "$SAMPLING" ]] && SAMPLING=44100

help() {
	printf 'Usage: ffstream %s\n' 'receive' 'send <address>'
}

operator=$1

rasmusmerzin

import { createAgent, tool } from "langchain";
import { z } from "zod";
import { ChatOllama } from "@langchain/ollama";

const getWeather = tool(({ city }) => `It's always sunny in ${city}!`, {
  name: "get_weather",
  description: "Get the weather for a given city",
  schema: z.object({ city: z.string() }),
});