diff --git a/.gitignore b/.gitignore
index 4428080..3d09459 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,4 @@
 Cargo.lock
 config.json
 .netrc
+config.json.instagram
diff --git a/Cargo.toml b/Cargo.toml
index a2de8aa..7cc5cd8 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,8 +7,10 @@ edition = "2021"
 rustflags = ["--out-dir", "target/output"]
 
 [dependencies]
-serde = { version = "1.0", features = ["derive"] }
-serde_json = "1.0"
-reqwest = { version = "0.11", features = ["blocking", "json", "multipart"] }
+serde = { version = "1.0.218", features = ["derive"] }
+serde_json = "1.0.140"
+reqwest = { version = "0.12", features = ["blocking", "json", "multipart", "stream"] }
 tokio = { version = "1.0", features = ["full"] }
-base64 = "0.21"
+base64 = "0.22.1"
+clap = { version = "4.5.3", features = ["derive"] }
+
diff --git a/src/image_description.rs b/src/image_description.rs
new file mode 100644
index 0000000..adee03b
--- /dev/null
+++ b/src/image_description.rs
@@ -0,0 +1,101 @@
+use base64::{Engine as _, engine::general_purpose::STANDARD};
+
+
+// module to hold all code for generating/fetching image descriptions
+// Input is the image name
+// Output is a String containing the image description
+pub struct ChatGPTConfig {
+    pub openai_api_key: String,
+    pub openai_api_url: String,
+    pub openai_model: String
+
+}
+
+pub struct OllamaConfig {
+    pub ollama_api_key: String,
+    pub ollama_api_url: String,
+    pub ollama_model: String
+}
+
+pub struct FileConfig {
+    pub caption_extension: String,
+}
+
+// fetch the imagedescription from a file named like the Image 
+pub async fn get_description_from_file(image_name: String , file_config: FileConfig) -> Result<String, Box<dyn super::Error>>  {
+    //read image caption from a local file that 
+    //has the same name than the image with the extension ".caption.txt"
+    let caption_extension = file_config.caption_extension;
+    let captionname =   format!("{}{}", image_name, caption_extension);
+    
+    println!("Looking for {}",captionname);
+    let caption_data = tokio::fs::read_to_string(captionname).await.map_err(|e| format!("Failed to read caption from file: {}", e))?;
+    
+    Ok(caption_data)
+}
+
+// fetch image description from ChatGPT
+pub async fn get_description_from_chatgpt(image_name: String, chatgpt_config: self::ChatGPTConfig) -> Result<String, Box<dyn super::Error>> {
+    // Read and encode image
+    let image_data = tokio::fs::read(image_name)
+        .await
+        .map_err(|e| format!("Failed to read image file: {}", e))?;
+    
+    
+    // Base64 encode the image for ChatGTP API
+    let base64_image = STANDARD.encode(image_data);
+    
+    // Create ChatGPT API request
+    let client = reqwest::Client::new();
+    let response = client
+        .post(chatgpt_config.openai_api_url)
+        .header("Authorization", format!("Bearer {}", chatgpt_config.openai_api_key))
+        .header("Content-Type", "application/json")
+        .json(&super::json!({
+            "model": chatgpt_config.openai_model,
+            "max_tokens": 300,
+            "messages": [
+                {
+                    "role": "user",
+                    "content": [
+                        {
+                            "type": "text",
+                            "text": "Please describe this image concisely for use as an alt text description. Focus on key visual elements and context."
+                        },
+                        {
+                            "type": "image_url",
+                            "image_url": {
+                                "url": format!("data:image/jpeg;base64,{}", base64_image)
+                            }
+                            }
+                            ]
+                            }
+                            ]
+                            }))
+                            .send()
+                            .await?;
+                            
+                            // Improved error handling for API response
+                            if !response.status().is_success() {
+                            let error_text = response.text().await?;
+                            return Err(format!("OpenAI API error: {}", error_text).into());
+                            }
+                            
+                            let result: super::Value = response.json().await?;
+                            
+                            // More detailed error handling for JSON parsing
+                            let description = result["choices"]
+                            .get(0)
+                            .ok_or("No choices in response")?
+                            ["message"]["content"]
+                            .as_str()
+                            .ok_or("Invalid content format in response")?
+                            .to_string();
+                            
+                            Ok(description)
+}
+
+// fetch images description from own OLLAMA server
+pub async fn get_description_from_ollama(image_name: String, ollama_config: OllamaConfig) -> Result<String, Box<dyn super::Error>> {
+    Ok("Not implemented yet".to_string())
+}
diff --git a/src/main.rs b/src/main.rs
index eafd7d7..5ac94da 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -4,27 +4,80 @@ use serde_json::{json, Value};
 use reqwest::blocking::Client;
 use reqwest::{self};
 use std::error::Error;
+use std::fs::File;
+use std::io::BufReader;
+use clap::{Parser, ValueEnum};
 use base64::{Engine as _, engine::general_purpose::STANDARD};
+use std::path::PathBuf;
+
+mod pixelfed;
+pub mod image_description;
+
+#[derive(Parser)]
+#[command(name = "Pixelfed Image Bulk Uploader")]
+#[command(version = "1.0")]
+#[command(about = "Bulk uploads images to Pixelfed with image descriptions", long_about = None)]
+#[command(version, about, long_about = None)]
+struct Cli {
+    /// Image description mode 
+    #[arg(short, long, default_value = "file")]
+    mode: Mode,
+    /// The title of the posting
+    #[arg(short, long)]
+    title: String,
+    /// The path to the file to read
+    #[arg(short, long)]
+    image_path: String,
+    /// Sets a custom config file
+    #[arg(short, long, value_name = "FILE")]
+    config: Option<String>,
+}
+
+
+#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, ValueEnum)]
+enum Mode {
+    /// Use ChatGTP
+    ChatGPT,
+    /// Taking from a file
+    File,
+    /// Local LLM
+    Local,
+}
+
 
 #[derive(Debug, Deserialize)]
 struct Config {
     pixelfed_url: String,
-    access_token: String,
-    visibility: String,  // Should be "unlisted"
-    default_text: String,
-    batch_size: usize,
+    pixelfed_access_token: String,
+    pixelfed_visibility: String,  // Should be "unlisted"
+    pixelfed_default_text: String,
+    pixelfed_batch_size: usize,
     openai_api_key: String,
     openai_api_url: String,
-    openai_model: String
+    openai_model: String,
+    ollama_api_key: String,
+    ollama_api_url: String,
+    ollama_model: String,
+    caption_extension: String,
     
 }
 
-fn load_config() -> Result<Config, Box<dyn Error>> {
-    let config_str = fs::read_to_string("config.json")?;
-    let config: Config = serde_json::from_str(&config_str)?;
+fn load_config(config_file: String) -> Result<Config, Box<dyn Error>> {
+    //let config_str = fs::read_to_string("config.json")?;
+    // Open the file in read-only mode with buffer.
+    
+    let file = File::open(PathBuf::from(config_file))?;
+    let reader = BufReader::new(file);
+
+    // Read the JSON contents of the file as an instance of `User`.
+
+
+    let config: Config = serde_json::from_reader(reader)?;
     Ok(config)
 }
 
+
+// get all the JPEG files from the give directory
 fn get_jpeg_files(directory: &str) -> Vec<String> {
     let mut images = Vec::new();
     if let Ok(entries) = fs::read_dir(directory) {
@@ -40,149 +93,50 @@ fn get_jpeg_files(directory: &str) -> Vec<String> {
     images
 }
 
-async fn get_image_description(config: &Config, image_path: &String) -> Result<String, Box<dyn Error>> {
-    // Read and encode image
-    let image_data = tokio::fs::read(image_path)
-        .await
-        .map_err(|e| format!("Failed to read image file: {}", e))?;
-    
-    let base64_image = STANDARD.encode(&image_data);
-
-    // Create ChatGPT API request
-    let client = reqwest::Client::new();
-    let response = client
-        .post(&config.openai_api_url)
-        .header("Authorization", format!("Bearer {}", config.openai_api_key))
-        .header("Content-Type", "application/json")
-        .json(&json!({
-            "model": config.openai_model,
-            "max_tokens": 300,
-            "messages": [
-                {
-                    "role": "user",
-                    "content": [
-                        {
-                            "type": "text",
-                            "text": "Please describe this image concisely for use as an alt text description. Focus on key visual elements and context."
-                        },
-                        {
-                            "type": "image_url",
-                            "image_url": {
-                                "url": format!("data:image/jpeg;base64,{}", base64_image)
-                            }
-                        }
-                    ]
-                }
-            ]
-        }))
-        .send()
-        .await?;
-
-    // Improved error handling for API response
-    if !response.status().is_success() {
-        let error_text = response.text().await?;
-        return Err(format!("OpenAI API error: {}", error_text).into());
-    }
-
-    let result: Value = response.json().await?;
-    
-    // More detailed error handling for JSON parsing
-    let description = result["choices"]
-        .get(0)
-        .ok_or("No choices in response")?
-        ["message"]["content"]
-        .as_str()
-        .ok_or("Invalid content format in response")?
-        .to_string();
-
-    Ok(description)
-}
-
-
-fn format_post_text(template: &str, batch_num: usize, total_batches: usize, title: &str) -> String {
-    template
-        .replace("@batch@", &format!("Batch {} out of {}", batch_num, total_batches))
-        .replace("@title@", title)
-}
-
-async fn upload_images_batch(client: &Client, config: &Config, images: &[String], batch_num: usize, total_batches: usize, title: &str) -> Result<(), Box<dyn Error>> {
-    let url = format!("{}/api/v1/media", config.pixelfed_url);
-    let mut media_ids = Vec::new();
-    let mut media_descriptions = Vec::new();
-
-    for image_path in images {
-        println!("Fetching image description from OpenAI for {}", image_path.to_string());
-        let  image_description: String ;
-        if !config.openai_api_key.is_empty() {
-            image_description = get_image_description(&config, &image_path).await?;    
-            println!("DESC:\n {} \n", &image_description);
-            media_descriptions.push(image_description.clone());    
-            
-        } else {
-            image_description = String::new();
-        }
-        
-        
-        println!("Uploading image {}", image_path.to_string());
-        
-        let form = reqwest::blocking::multipart::Form::new().text("description", image_description.clone())
-            .file("file", image_path)?;
-            
-        let res = client.post(&url)
-            .bearer_auth(&config.access_token)
-            .multipart(form)
-            .send()?;
-
-        let json: serde_json::Value = res.json()?;
-        if let Some(id) = json["id"].as_str() {
-            media_ids.push(id.to_string());
-        }
-    }
-
-    if !media_ids.is_empty() {
-        let post_url = format!("{}/api/v1/statuses", config.pixelfed_url);
-        let post_text = format_post_text(&config.default_text, batch_num, total_batches, title);
-        let body = serde_json::json!({
-            "status": post_text,
-            "media_ids": media_ids,
-            "alt_texts": media_descriptions,
-            "visibility": config.visibility,
-        });
-        
-        println!("Posting batch {} out of {} with media {}", batch_num, total_batches, media_ids.len());
-        client.post(&post_url)
-            .bearer_auth(&config.access_token)
-            .json(&body)
-            .send()?;
-    }
-
-    Ok(())
-}
 
 #[tokio::main]
 async fn main() -> Result<(), Box<dyn Error>> {
-    let args: Vec<String> = std::env::args().collect();
-    if args.len() < 2 {
-        eprintln!("Usage: {} <directory> [--title <title>]", args[0]);
-        std::process::exit(1);
-    }
+    let args = Cli::parse();
+    
+    //if args.len() < 2 || args.len() > 3 {
+    //    eprintln!("Usage: {} <directory> [--title <title>]", args[0]);
+    //    eprintln!("Usage: {} <directory> -ready [--title <title>]", args[0]);
+    //    std::process::exit(1);
+    //} 
 
-    let mut title = "".to_string();
-    if let Some(index) = args.iter().position(|x| x == "--title") {
-        if index + 1 < args.len() {
-            title = args[index + 1].clone();
-        }
+    let  title = args.title;
+    let mut my_config: String;
+    
+    
+    
+    match args.config {
+        Some(configstring)  => { my_config = configstring}, 
+        None => {my_config = "config.json".to_string()},
     }
+    println!("effictive config file: {}", my_config);
 
-    let config = load_config()?;
-    let images = get_jpeg_files(&args[1]);
-    let client = Client::new();
-    let total_batches = (images.len() + config.batch_size - 1) / config.batch_size;
+    
+    let config = load_config(my_config).unwrap();
+    println!("Config OK? true");
+    
+    
+    
+    
+    
+    
+    // get list of all the images in the gives path
+    let images = get_jpeg_files(&args.image_path);
+    println!("Images empty? {}", images.is_empty().to_string());
+    
+    // knowing now the total number of images, calculate the number of batches
+    let total_batches = (images.len() + config.pixelfed_batch_size - 1) / config.pixelfed_batch_size;
     println!("Found a total of {} images to upload. Will take {} batches", images.len(), total_batches);
-    for (i, chunk) in images.chunks(config.batch_size).enumerate() {
-        upload_images_batch(&client, &config, chunk, i + 1, total_batches, &title).await?;
+    
+    // now iterate over all images in batches of batch_size 
+    for (i, chunk) in images.chunks(config.pixelfed_batch_size).enumerate() {
+        println!("{}", i.clone());
+        pixelfed::bulk_upload_images(&config, chunk, i + 1, total_batches, &title, &args.mode).await?;
     }
-
     println!("All images uploaded successfully.");
     Ok(())
 }
diff --git a/src/pixelfed.rs b/src/pixelfed.rs
new file mode 100644
index 0000000..2efb56e
--- /dev/null
+++ b/src/pixelfed.rs
@@ -0,0 +1,102 @@
+use reqwest::{self, multipart};
+use std::error::Error;
+
+struct PixelfedConfig {
+    pixelfed_url: String,
+    pixelfed_access_token: String,
+    pixelfed_visibility: String,  // Should be "unlisted"
+    pixelfed_default_text: String,
+    pixelfed_batch_size: usize,
+}
+
+fn format_post_text(template: &str, batch_num: usize, total_batches: usize, title: &str) -> String {
+    template
+        .replace("@batch@", &format!("Batch {} out of {}", batch_num, total_batches))
+        .replace("@title@", title)
+}
+
+// upload a single image to pixelfed
+pub async fn bulk_upload_images(config: &super::Config, images: &[String], batch_num: usize, total_batches: usize, title: &str, caption_mode: &super::Mode) -> Result<(), Box<dyn Error>> {
+    let mut media_ids = Vec::new();
+    let mut media_descriptions = Vec::new();
+    let client = reqwest::Client::new();
+    let pxl_config = PixelfedConfig {
+        pixelfed_url: config.pixelfed_url.clone(),
+        pixelfed_access_token: config.pixelfed_access_token.clone(),
+        pixelfed_visibility: config.pixelfed_visibility.clone(),
+        pixelfed_default_text: config.pixelfed_default_text.clone(),
+        pixelfed_batch_size: config.pixelfed_batch_size,
+    };
+    let url = format!("{}/api/v1/media", config.pixelfed_url.clone());
+
+    for image_path in images {
+        let description: String;
+        println!("Uploading image {}", image_path.to_string());
+        // get image description depending on the caption_mode
+        match caption_mode {
+            super::Mode::ChatGPT => {
+                let im_config = super::image_description::ChatGPTConfig {
+                    openai_model: config.openai_model.clone(),
+                    openai_api_key: config.openai_api_key.clone(),
+                    openai_api_url: config.openai_api_url.clone(),
+                };
+                description = super::image_description::get_description_from_chatgpt(image_path.to_string(), im_config).await?;
+                media_descriptions.push(description.clone());
+            },
+            super::Mode::File => {
+                let im_config = super::image_description::FileConfig {
+                    caption_extension: config.caption_extension.clone(),
+                };
+                println!("Fetching image description from File for {}", image_path.to_string());
+                description = super::image_description::get_description_from_file(image_path.to_string(), im_config).await?;
+                media_descriptions.push(description.clone());
+            },
+            super::Mode::Local => {
+                let im_config = super::image_description::OllamaConfig {
+                    ollama_api_key: config.ollama_api_key.clone(),
+                    ollama_api_url: config.ollama_api_url.clone(),
+                    ollama_model: config.ollama_model.clone(),
+                };
+                println!("Fetching image description from OLLAMA for {}", image_path.to_string());
+                description = super::image_description::get_description_from_ollama(image_path.to_string(), im_config).await?;
+                media_descriptions.push(description.clone());
+            },
+        }
+
+        println!("Uploading image {}", image_path.to_string());
+
+        // construct the upload form for Pixelfed Upload of a single image including image description
+        let form = multipart::Form::new()
+            .file("file", image_path).await?;
+        // upload the form to Pixelfed
+        let res = client.post(&url)
+            .bearer_auth(&config.pixelfed_access_token)
+            .multipart(form)
+            .send()
+            .await?;
+
+        let res_json: serde_json::Value = res.json().await?;
+        let image_id = res_json["id"].as_str().unwrap().to_string();
+        media_ids.push(image_id);
+    }
+
+    if !media_ids.is_empty() {
+        let post_url = format!("{}/api/v1/statuses", config.pixelfed_url);
+        let post_text = format_post_text(&config.pixelfed_default_text, batch_num, total_batches, title);
+        let body = serde_json::json!({
+            "status": post_text,
+            "media_ids": media_ids,
+            "alt_texts": media_descriptions,
+            "visibility": config.pixelfed_visibility,
+        });
+        println!("Body: \n{}", body.to_string());
+        println!("MediaIDs: {}", media_ids.len());
+        println!("Alt_texts: {}", media_descriptions.len());
+        println!("Posting batch {} out of {} with media {}", batch_num, total_batches, media_ids.len());
+        client.post(&post_url)
+            .bearer_auth(&config.pixelfed_access_token)
+            .json(&body)
+            .send().await?;
+    }
+    Ok(())
+}