In Berlin, you could get it for free through the SolarPLUS[1] subsidy program. My setup (2 panels, inverter and mounts) cost less than 500€ and was fully subsidized.
I've had a great experience using the IntelliJ plugin called CodeGPT (https://plugins.jetbrains.com/plugin/21056-codegpt). What I really like about it is that it allows you to bring your own API key for various providers like Anthropic and OpenAI.
Additionally, CodeGPT supports local LLMs, which can be useful if you're concerned about data privacy or want to work offline.