The simplest way to make AI coding tools GDPR compliant: run everything on your own servers. No data transfers, no DPAs, no third-party processors. Here’s how.

The setup

Developer machine → Your server (or local) → Model inference → Response
                    ↑
            No external connections
            No data leaves your network

Recommended self-hosted stack

Component	Tool	Why
Model runtime	Ollama	Easiest setup, auto GPU acceleration
Coding agent	Aider or OpenCode	Works with local models
IDE assistant	Continue.dev	Open-source, connects to Ollama
Autocomplete	Codestral 22B via Ollama	Best FIM model
Chat/coding	Devstral Small 24B or Qwen 3.5 27B	Best local coding models

Hardware options

Setup	Cost	Serves	Models
Mac Mini M4 32GB	$1,150	1-2 devs	27B models
Mac Mini M4 Pro 48GB	$1,800	2-3 devs	32B models
RTX 4090 workstation	$2,500	3-5 devs	27B models
A100 server	$10,000+	5-15 devs	72B+ models

See our free AI coding server guide for team setup.

Quick setup (single developer)

# Install
brew install ollama
pip install aider-chat

# Pull models
ollama pull devstral-small:24b   # Coding agent
ollama pull codestral:22b        # Autocomplete

# Start coding
aider --model ollama/devstral-small:24b

Total cost: $0/month after hardware. Complete GDPR compliance. No paperwork.

What you give up

Be honest about the tradeoffs:

	Self-hosted	Cloud API
Quality	Good (80-90% of Claude)	Best
Speed	Hardware-dependent	Consistent
Maintenance	You manage updates	Zero
Cost	Hardware upfront	Monthly API fees
Privacy	✅ Complete	Depends on provider
GDPR	✅ Automatic	Requires DPA + audit

For most EU companies, the quality gap is acceptable. A Devstral Small 24B handles 80% of coding tasks well. For the remaining 20%, use Mistral’s API (EU-based, GDPR compliant by default).

Related: AI and GDPR for Developers · Best AI Coding Agents for Privacy · Ollama Complete Guide · How to Set Up a Free AI Coding Server