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Local Copilot with Ollama on Omarchy (Arch Linux)

This document explains how to configure VS Code Copilot Chat to use a local LLM running on your NVIDIA GPU, optimized for Ruby on Rails development.

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1. NVIDIA Driver Setup (Hybrid Intel + NVIDIA)

Run the following commands:

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Letter‑Aligned Lyric Timing Specification (LLTS)

Format name: Letter‑Aligned Lyric Timing Specification Short name: LLTS File extension: .llts

1. Purpose and Scope

LLTS defines a copyright‑safe interchange format for precise lyric timing, including sub‑word (letter‑range) alignment, without containing any lyric text. The format is intended for karaoke engines, DAWs, captioning tools, and research systems that require deterministic alignment while relying on user‑supplied lyrics obtained separately.

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Here are the steps I used to install Omarchy in dual boot with Windows (inspired by https://www.youtube.com/watch?v=9jTk3K3ExaI):

1. Use iwctl to connect to wifi
2. sfdisk /dev/nvme0n1 -> make 1 EFI partition (nvme0n1p4 - 1G), 1 Linux partition (nvme0n1p5 - remaining space)
3. Format

mkfs.vfat -F 32 /dev/nvme0n1p4
mkfs.btrfs /dev/nvme0n1p5

4. Create subvolumes (not sure if optional or mandatory). Do NOT create a subvolume for snapshots, it will raise errors during archinstall.

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Causes of FrozenError: can't modify frozen attributes

1. Model was unintentionally deleted/destroyed.

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Notes

This guide uses Kamal 2.5.3

Motivation

Kamal was designed with 1 service = 1 droplet/VPS in mind.
But I'm cheap and I want to be able to deploy multiple demo/poc apps apps on my $20/month dedicated server.
What the hell, I'll even host my private container registry on it.

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    #include <ifaddrs.h>
    
    // http://stackoverflow.com/questions/25626117/how-to-get-ip-address-in-swift
    func getIFAddresses() -> [String] {
        var addresses = [String]()
        
        // Get list of all interfaces on the local machine:
        var ifaddr : UnsafeMutablePointer<ifaddrs> = nil
        if getifaddrs(&ifaddr) == 0 {