Building a Self-Hosted AI Code Assistant: Enterprise-Grade Privacy with Continue.dev and Tabby on a VPS

Introduction: The Case for Self-Hosted AI in Modern Software Development

Artificial Intelligence has fundamentally transformed the software development lifecycle. Tools like GitHub Copilot and OpenAI's ChatGPT have become indispensable for developers looking to accelerate coding speed, automate boilerplate creation, and debug complex algorithms. However, for enterprises, financial institutions, and tech startups handling proprietary logic, third-party AI services introduce a significant vulnerability: intellectual property data leaks.

When developers use public cloud AI plugins, sensitive codebases, API keys, and internal architecture secrets are often transmitted to external servers, and potentially used to train public models. To mitigate this risk without sacrificing the massive productivity gains of generative AI, forward-thinking engineering teams are turning to self-hosted alternatives. This guide provides a comprehensive, step-by-step blueprint to building your own enterprise-grade AI Code Assistant using Tabby as the self-hosted backend model provider and Continue.dev as the open-source IDE interface, all deployed securely on a Virtual Private Server (VPS).

Why Choose the Tabby and Continue.dev Stack?

Building an internal AI ecosystem requires two core components: a robust backend inference engine that hosts the Large Language Model (LLM) and an intuitive frontend plugin that integrates seamlessly into developers' workflows. By pairing Tabby with Continue.dev, you achieve an optimal balance between performance, privacy, and user experience.

Tabby: The Self-Hosted AI Coding Server

Tabby is an open-source, self-hosted AI coding assistant designed specifically for self-hosting. Unlike generic LLM engines, Tabby is optimized out-of-the-box for code completion and repository-level context understanding. Key advantages include:

• Low Resource Footprint: It runs efficiently on both consumer-grade hardware and specialized enterprise GPUs.
• Repository Context: Tabby can index your local and remote Git repositories, providing context-aware suggestions tailored to your specific codebase conventions.
• Multi-Model Support: It natively supports industry-standard open-weights models such as DeepSeek-Coder, StarCoder, and CodeLlama.

Continue.dev: The Ultimate Open-Source IDE Interface

Continue.dev acts as the bridge between the developer and the AI server. Operating as an extension for Visual Studio Code and JetBrains IDEs, Continue offers features that rival premium commercial products:

• Inline Code Generation: Refactor, edit, and generate code directly inside the active file with a simple shortcut.
• Chat Interface: A robust sidebar chat that allows developers to ask questions about code logic, explain legacy syntax, or generate comprehensive unit tests.
• Highly Configurable: Seamlessly hooks into any custom backend API via an open-source config.json layout.

Infrastructure Requirements and VPS Selection

Before initiating the deployment process, selecting the right VPS configuration is paramount. Code completion models require fast inference times to maintain developer flow state; high latency will lead to abandonment of the tool. Use the following hardware guidelines based on your team size and model preference:

Pro Tip: While CPU-only inference is cost-effective for individual developers using small 1B-parameter models, a GPU-accelerated VPS (such as those offered by AWS, Vultr, or Linode) is highly recommended for teams to ensure latency stays under 200ms.

Step-by-Step Deployment of Tabby on Your VPS

We will utilize Docker to ensure a clean, reproducible installation of Tabby on your remote server. This approach isolates dependencies and simplifies future version upgrades.

Step 1: Install Docker and Docker Compose

Connect to your VPS via SSH and execute the following commands to update your system package registry and install the Docker engine:

sudo apt update && sudo apt upgrade -y
sudo apt install docker.io docker-compose-plugin -y
sudo systemctl enable --now docker

Step 2: Configure the Tabby Service

Create a dedicated directory for your AI assistant infrastructure and navigate into it. We will write a configuration file to orchestrate the container deployment.

mkdir -p ~/ai-assistant/data
cd ~/ai-assistant
nano docker-compose.yml

Paste the following YAML structure into your docker-compose.yml file. This script instructs Docker to pull the official Tabby image, map port 8080, expose your data volume, and download the highly-efficient DeepSeek-Coder-6.7B model automatically on startup:

version: '3.8'

services:
  tabby:
    image: tabbyml/tabby:latest
    command: serve --model DeepSeek-Coder-6.7B --device cuda
    ports:
      - "8080:8080"
    volumes:
      - ./data:/data
    deploy:
      resources:
        reservations:
          devices:
            - driver: nvidia
              count: all
              capabilities: [gpu]
    restart: always

Note: If you are deploying on a CPU-only VPS, change --device cuda to --device cpu and remove the entire deploy block mapping the nvidia driver.

Step 3: Launching the Backend Server

Execute the docker compose command in detached mode to download the model weights and boot the container service:

docker compose up -d

To track the progress of your model download and verify that the API server initialized successfully, monitor the real-time container output via logs:

docker compose logs -f tabby

Once initialized, open a web browser and navigate to http://your-vps-ip:8080. You will be greeted by the Tabby administrative dashboard, where you can configure authentication tokens, monitor model usage metrics, and link your enterprise Git repositories for custom contextual fine-tuning.

Configuring the IDE Frontend with Continue.dev

With your enterprise AI engine fully operational in the cloud, the next phase involves connecting your developers' local machines to the VPS infrastructure using Continue.dev.

Step 1: Install the IDE Extension

1. Open Visual Studio Code (or your preferred JetBrains IDE).
2. Navigate to the Extensions Marketplace (Ctrl+Shift+X or Cmd+Shift+X).
3. Search for Continue and click Install.

Step 2: Modify the Global Configuration Layout

Once installed, a new Continue icon will appear on your IDE status or sidebar. Click on the gear icon in the bottom right corner of the Continue panel to access the config.json settings file. Replace the default structure with the custom configuration payload detailed below:

{
  "models": [
    {
      "title": "Tabby DeepSeek Chat",
      "provider": "tabby",
      "model": "DeepSeek-Coder-6.7B",
      "apiBase": "http://your-vps-ip:8080"
    }
  ],
  "tabAutocompleteModel": {
    "title": "Tabby Autocomplete",
    "provider": "tabby",
    "model": "DeepSeek-Coder-6.7B",
    "apiBase": "http://your-vps-ip:8080"
  },
  "customCommands": [
    {
      "name": "test",
      "prompt": "Write a comprehensive suite of unit tests for this selected code utilizing standard frameworks.",
      "description": "Generate unit tests"
    }
  ],
  "contextProviders": [
    { "name": "code", "params": {} },
    { "name": "docs", "params": {} }
  ]
}

Be sure to replace http://your-vps-ip:8080 with your actual VPS IP address or domain name. If your company enforces secure connections, wrap the endpoint behind a reverse proxy using Nginx or Caddy with Let's Encrypt SSL certificates to ensure all internal corporate code travels over encrypted HTTPS protocols.

Maximizing Enterprise Value: Custom Workflows and Best Practices

Deploying the infrastructure is only half the battle; maximizing adoption and efficiency across your development team requires adhering to operational best practices.

1. Index Internal Documentation

Continue.dev allows developers to reference local markdown files or internal wikis. By typing @docs in the chat panel, developers can instruct the AI to analyze internal coding manuals, architecture standards, or deployment playbooks alongside the code generation process, cutting down onboarding times for new engineers.

2. Automate Code Reviews and Refactoring

Encourage your engineering team to utilize custom inline commands. Highlighting a block of legacy code and hitting Ctrl+I (or Cmd+I) opens an instruction bar. Typing "Refactor to asynchronous execution pattern" or "Optimize memory footprint" allows the internal AI model to execute atomic rewrites instantly while honoring private code boundaries.

3. Monitor Analytics and Fine-Tune

Utilize the Tabby admin dashboard to regularly assess the Acceptance Rate of the AI suggestions. If completion acceptance drops below 25%, evaluate if your codebase has shifted style metrics, and consider scheduling an offline cron job on the VPS to run Tabby's automated repository indexing on your primary development branches.

Conclusion: A Secure, Autonomous Coding Future

Building an internal AI Code Assistant removes the trade-off between modern developer velocity and traditional corporate compliance. By taking ownership of your infrastructure through Continue.dev and Tabby, you retain complete sovereignty over your data assets, mitigate subscription seat overheads, and empower your dev teams with an intelligent, context-aware co-pilot tailored perfectly to your custom technology ecosystem. Security and speed no longer need to be mutually exclusive.