diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index f6052dc93c2b..4eaebbb5e8cf 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -45,13 +45,6 @@ jobs:
       # the login password doesn't matter, but the keyring must be unlocked for the tests to work
       run: gnome-keyring-daemon --components=secrets --daemonize --unlock <<< 'foobar'
 
-    - name: Install UV
-      run: |
-        curl -LsSf https://astral.sh/uv/install.sh | sh
-
-    - name: Run download_tokenizer_files.py
-      run: uv run download_tokenizer_files.py
-
     - name: Set up Rust
       uses: actions-rs/toolchain@v1
       with:
diff --git a/.github/workflows/desktop-app-release.yaml b/.github/workflows/desktop-app-release.yaml
index c58ebf6b818d..c4e87066e576 100644
--- a/.github/workflows/desktop-app-release.yaml
+++ b/.github/workflows/desktop-app-release.yaml
@@ -44,14 +44,6 @@ jobs:
         restore-keys: |
           ${{ runner.os }}-cargo-build-
 
-    # Install UV and download tokenizer files
-    - name: Install UV
-      run: |
-        curl -LsSf https://astral.sh/uv/install.sh | sh
-
-    - name: Run download_tokenizer_files.py
-      run: uv run download_tokenizer_files.py
-
     # Build Rust Binary
     - name: Build Release Binary
       run: cargo build --release
@@ -68,7 +60,7 @@ jobs:
       working-directory: ui/desktop
       env:
         CERTIFICATE_OSX_APPLICATION: ${{ secrets.CERTIFICATE_OSX_APPLICATION }}
-        CERTIFICATE_PASSWORD: ${{ secrets.CERTIFICATE_PASSWORD }}      
+        CERTIFICATE_PASSWORD: ${{ secrets.CERTIFICATE_PASSWORD }}
 
     - name: Set up Node.js
       uses: actions/setup-node@v2
@@ -91,4 +83,4 @@ jobs:
       uses: actions/upload-artifact@v3
       with:
         name: Goose.zip
-        path: ui/desktop/out/Goose-darwin-arm64/Goose.zip          
+        path: ui/desktop/out/Goose-darwin-arm64/Goose.zip
diff --git a/.gitignore b/.gitignore
index cee516b0b299..63a20930b708 100644
--- a/.gitignore
+++ b/.gitignore
@@ -23,3 +23,7 @@ Cargo.lock
 # UI
 ./ui/desktop/node_modules
 ./ui/desktop/out
+
+# Hermit
+/.hermit/
+/bin/
diff --git a/README.md b/README.md
index af185d8b9c25..666e789658ee 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,6 @@ This is the branch for goose 1.0 WIP: which is a port over from python to rust +
 ## Building
 
 ```sh
-./download_tokenizer_files.sh
 cargo build
 ```
 
diff --git a/crates/goose/Cargo.toml b/crates/goose/Cargo.toml
index 55bf58c3f10a..4b68fd44301c 100644
--- a/crates/goose/Cargo.toml
+++ b/crates/goose/Cargo.toml
@@ -7,6 +7,10 @@ license.workspace = true
 repository.workspace = true
 description.workspace = true
 
+[build-dependencies]
+tokio = { version = "1.36", features = ["full"] }
+reqwest = { version = "0.11", features = ["json"] }
+
 [dependencies]
 mcp-core = { path = "../mcp-core" }
 dirs = "5.0.1"
@@ -44,7 +48,11 @@ libc = "=0.2.167"
 lazy_static = "1.5"
 kill_tree = "0.2.4"
 
-keyring = { version = "3.6.1", features = ["apple-native", "windows-native", "sync-secret-service"] }
+keyring = { version = "3.6.1", features = [
+    "apple-native",
+    "windows-native",
+    "sync-secret-service",
+] }
 shellexpand = "3.1.0"
 rust_decimal = "1.36.0"
 rust_decimal_macros = "1.36.0"
diff --git a/crates/goose/build.rs b/crates/goose/build.rs
new file mode 100644
index 000000000000..421ad3df5821
--- /dev/null
+++ b/crates/goose/build.rs
@@ -0,0 +1,58 @@
+use std::error::Error;
+use std::fs;
+use std::path::Path;
+
+const BASE_DIR: &str = "../../tokenizer_files";
+const MODELS: &[&str] = &[
+    "Xenova/claude-tokenizer",
+    "Xenova/gemma-2-tokenizer",
+    "Xenova/gpt-4o",
+    "Qwen/Qwen2.5-Coder-32B-Instruct",
+];
+
+#[tokio::main]
+async fn main() -> Result<(), Box<dyn Error>> {
+    // Create base directory
+    fs::create_dir_all(BASE_DIR)?;
+    println!("cargo:rerun-if-changed=build.rs");
+    println!("cargo:rerun-if-changed={}", BASE_DIR);
+
+    for model in MODELS {
+        download_tokenizer(model).await?;
+    }
+
+    Ok(())
+}
+
+async fn download_tokenizer(repo_id: &str) -> Result<(), Box<dyn Error>> {
+    let dir_name = repo_id.replace('/', "--");
+    let download_dir = format!("{}/{}", BASE_DIR, dir_name);
+    let file_url = format!(
+        "https://huggingface.co/{}/resolve/main/tokenizer.json",
+        repo_id
+    );
+    let file_path = format!("{}/tokenizer.json", download_dir);
+
+    // Create directory if it doesn't exist
+    fs::create_dir_all(&download_dir)?;
+
+    // Check if file already exists
+    if Path::new(&file_path).exists() {
+        println!("Tokenizer for {} already exists, skipping...", repo_id);
+        return Ok(());
+    }
+
+    println!("Downloading tokenizer for {}...", repo_id);
+
+    // Download the file
+    let response = reqwest::get(&file_url).await?;
+    if !response.status().is_success() {
+        return Err(format!("Failed to download tokenizer for {}", repo_id).into());
+    }
+
+    let content = response.bytes().await?;
+    fs::write(&file_path, content)?;
+
+    println!("Downloaded {} to {}", repo_id, file_path);
+    Ok(())
+}
diff --git a/download_tokenizer_files.py b/download_tokenizer_files.py
deleted file mode 100644
index 7c205d45495c..000000000000
--- a/download_tokenizer_files.py
+++ /dev/null
@@ -1,23 +0,0 @@
-# /// script
-# dependencies = [
-#   "huggingface_hub"
-# ]
-# ///
-
-# Run: `uv run download_tokenizer_files.py`
-
-from huggingface_hub import hf_hub_download
-from pathlib import Path
-
-BASE_DIR = Path("tokenizer_files")
-BASE_DIR.mkdir(parents=True, exist_ok=True)
-
-for repo_id in [
-    "Xenova/gpt-4o",
-    "Xenova/claude-tokenizer",
-    "Qwen/Qwen2.5-Coder-32B-Instruct",
-    "Xenova/gemma-2-tokenizer",
-]:
-    download_dir = BASE_DIR / repo_id.replace("/", "--")
-    _path = hf_hub_download(repo_id, filename="tokenizer.json", local_dir=download_dir)
-    print(f"Downloaded {repo_id} to {_path}")
diff --git a/download_tokenizers.sh b/download_tokenizers.sh
deleted file mode 100755
index b46618d2d01b..000000000000
--- a/download_tokenizers.sh
+++ /dev/null
@@ -1,35 +0,0 @@
-#!/bin/bash
-
-# Create base directory for tokenizer files
-BASE_DIR="tokenizer_files"
-mkdir -p "$BASE_DIR"
-
-# Function to download a tokenizer file
-download_tokenizer() {
-    local repo_id="$1"
-    local dir_name="${repo_id//\/--}"  # Replace / with -- for directory name
-    local download_dir="$BASE_DIR/${repo_id//\//--}"  # Replace / with -- for directory name, matching Python's replace("/", "--")
-    local file_url="https://huggingface.co/$repo_id/resolve/main/tokenizer.json"
-    
-    mkdir -p "$download_dir"
-    
-    # Only download if the file doesn't exist
-    if [ ! -f "$download_dir/tokenizer.json" ]; then
-        echo "Downloading tokenizer for $repo_id..."
-        curl -L "$file_url" -o "$download_dir/tokenizer.json"
-        if [ $? -eq 0 ]; then
-            echo "Downloaded $repo_id to $download_dir/tokenizer.json"
-        else
-            echo "Failed to download $repo_id tokenizer"
-            return 1
-        fi
-    else
-        echo "Tokenizer for $repo_id already exists, skipping..."
-    fi
-}
-
-# Download tokenizers for each model
-download_tokenizer "Xenova/gpt-4o"
-download_tokenizer "Xenova/claude-tokenizer"
-download_tokenizer "Qwen/Qwen2.5-Coder-32B-Instruct"
-download_tokenizer "Xenova/gemma-2-tokenizer"
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
new file mode 100644
index 000000000000..02cb8fcb5372
--- /dev/null
+++ b/rust-toolchain.toml
@@ -0,0 +1,3 @@
+[toolchain]
+channel = "stable"
+profile = "default"