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Practical: Run a Node.js Express Application Inside an Ubuntu Docker Container

Part A

1. Learning objectives

In this practical, students will learn how to:

• Create a basic Node.js Express application.

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Tutorial: Using uv to develop and test a Django project on NixOS

This tutorial covers installing uv, creating a Django project, understanding its virtual environment and dependencies, running the development server, testing the application, and handling differences specific to NixOS.

The examples assume you are using NixOS with Bash and want a conventional Django project that you can develop locally.

1. Understand what uv does

uv is a fast Python package and project manager. It can manage Python versions, virtual environments, dependencies, and project commands.

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Colibri on NixOS: Installation, Web Dashboard, and Model Switching

This tutorial covers cloning Colibri, building its web dashboard, running local models with nix run, and connecting the API to Pi Agent.

1. Clone the Colibri repository

# Clone the repository
mkdir -p ~/Documents/colibri-ssd
cd ~/Documents/colibri-ssd

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GitHub Repository Setup Instructions for Backend Development Lab

Follow the steps below to create and organize your repository for the Backend Development course.

Prerequisites

1. Install Git from:

   • Git SCM Official Website

2. During installation, keep the default settings unless instructed otherwise.

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Subject: Audio Array AM-C1 USB Microphone – Linux Compatibility Issue (USB Bandwidth / Capture Failure)

Dear Audio Array Support Team,

I am seeking assistance regarding an issue with an Audio Array AM-C1 microphone on Linux systems.

Device Information

• Product: Audio Array AM-C1
• USB ID: 0c76:1719

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GitHub Pages + Cloudflare Tunnel + Nginx Proxy Manager + SSH over Cloudflare Tunnel (NixOS)

Final architecture:

example.com                  -> GitHub Pages
www.example.com              -> GitHub Pages
docs.example.com             -> GitHub Pages

*.example.com -> Cloudflare Tunnel

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Understanding Binary Numbers

Before diving into signed and unsigned representations, it's essential to grasp the basics of binary numbers. Binary is a base-2 numeral system, meaning it only uses two digits: 0 and 1. Each digit in a binary number is called a bit. In a 4-bit binary number, there are four positions, each representing a power of 2, starting from the right (which is (2^0)).

Example of a 4-bit binary number:

1 0 1 1

Calculating its decimal equivalent: [

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uninstall remove nix from wsl

 sudo mv /etc/zshrc.backup-before-nix /etc/zshrc
 sudo mv /etc/profile.d/nix.sh.backup-before-nix /etc/profile.d/nix.sh
 sudo mv /etc/bashrc.backup-before-nix /etc/barhrc
 sudo mv /etc/bash.bashrc.backup-before-nix /etc/bash.bashrc
 sudo rm -rf /nix

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First login to server

• Linux users: Use any linux terminal
• Windows users: install mobaterm

ssh -X -L 8888:127.0.0.1:8888 username@10.135.27.6

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You need a bash terminal of linu or windown users need to install git bash

after installation rightclick and select git bash here Now you have bash on windows

ssh in to server with

# define server IP