Add LLM installer script

Author: AgenttiX

llm/install.sh

@@ -0,0 +1,23 @@
+#!/usr/bin/env sh
+
+# Nix is required for llama.cpp
+if ! command -v nix &> /dev/null; then
+    echo "Installing Nix."
+    sh <(curl --proto '=https' --tlsv1.2 -L https://nixos.org/nix/install) --daemon
+fi
+
+if ! command -v ollama &> /dev/null; then
+    echo "Installing Ollama."
+    curl -fsSL https://ollama.com/install.sh | sh
+fi
+
+nix profile install nixpkgs#llama-cpp --extra-experimental-features nix-command --extra-experimental-features flakes
+
+which llama-server
+llama-server --version
+
+which llama-cli
+llama-cli -hf Qwen/Qwen2.5-7B-Instruct-GGUF
+
+llama-bench --list-devices
+llama-bench --model ${HOME}/.cache/llama.cpp/Qwen_Qwen2.5-7B-Instruct-GGUF_qwen2.5-7b-instruct-q2_k.gguf