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+
+# Frequently asked questions
+
+## Can I use aider with other LLMs, local LLMs, etc?
+
+Aider does not officially support use with LLMs other than OpenAI's gpt-3.5-turbo and gpt-4
+and there variations.
+
+It generally requires some model-specific tuning to get prompts and
+editing formats working well. For example, GPT-3.5 and GPT-4 use very
+different prompts and editing formats in aider right now. 
+Adopting new LLMs will probably require a similar effort to tailor the
+prompting and edit formats.
+
+That said, aider does provide some features to experiment with other models,
+as long as you can make them accessible via an OpenAI compatible API.
+
+You can use `--openai-api-base` to connect to a different API endpoint.
+
+This looks like a relevant tool to serve many local models via a compatible API:
+
+https://github.com/go-skynet/LocalAI
+
+Here is are some
+[GitHub issues which may be relevant](https://github.com/paul-gauthier/aider/issues?q=is%3Aissue+%22openai-api-base%22+).
+
+## Can I change the system prompts that aider uses?
+
+Aider is set up to support different system prompts and edit formats
+in a modular way. If you look in the `aider/coders` subdirectory, you'll
+see there's a base coder with base prompts, and then there are
+a number of
+different specific coder implementations.
+
+While it's not yet documented how to add new coder subsystems, you may be able
+to modify an existing implementation or use it as a template to add another.
+
+If you're thinking about experimenting with system prompts this
+document might be useful background:
+
+https://aider.chat/docs/benchmarks.html
+
+## Can I run aider in Google Colab?
+
+User [imabutahersiddik](https://github.com/imabutahersiddik)
+has provided has contributed this
+[Colab notebook](https://colab.research.google.com/drive/1J9XynhrCqekPL5PR6olHP6eE--rnnjS9?usp=sharing).
+
+
+## How do I get ctags working?
+
+First, be aware that ctags is completely optional and not required to use aider.
+
+If you wish to use ctags, you should consult the
+[universal ctags repo](https://github.com/universal-ctags/ctags)
+for official instructions on how to install it in your environment.
+
+You may be able to install a compatible version using these commands:
+
+* Mac: `brew install universal-ctags`
+* Windows: `choco install universal-ctags`
+* Ubuntu: `sudo apt-get install universal-ctags`
+
+Some things to be aware of:
+
+* The `ctags` command needs to be on your shell path so that it will run by default when aider invokes `ctags ...`.
+* You need a build which includes the json feature. You can check by running `ctags --version` and looking for `+json` in the `Optional compiled features` list.
+
+
+