diff --git a/Cargo.toml b/Cargo.toml
index 74f6016..de1d817 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,6 +9,7 @@ edition = "2021"
 anyhow = "1.0.70"
 axum = { version = "0.6.12", features = ["tokio", "multipart"] }
 axum-macros = "0.3.7"
+base64 = "0.21.2"
 ffmpeg-cli = "0.1.0"
 ffprobe = "0.3.3"
 filepath = "0.1.2"
diff --git a/src/main.rs b/src/main.rs
index db459ac..54828bc 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -4,13 +4,32 @@ use axum::response::{IntoResponse, Response};
 use axum::routing::post;
 use axum::{Json, Router};
 use axum_macros::debug_handler;
+use base64::{engine::general_purpose, Engine as _};
+use core::panic;
 use ffmpeg_cli::Parameter;
 use futures_util::{future::ready, StreamExt};
 use serde::{Deserialize, Serialize};
-use std::collections::HashSet;
+use std::collections::{HashMap, HashSet};
 use std::io::Read;
 use std::io::Write;
 use std::process::Stdio;
+use std::rc::Rc;
+
+#[derive(Debug)]
+enum Runner {
+    DeepDanbooru(String),
+    StableDiffusionWebUI(String),
+}
+
+fn get_upstream_runner() -> Runner {
+    match std::env::var("DD_ADDRESS") {
+        Ok(value) => Runner::DeepDanbooru(value),
+        Err(_) => match std::env::var("SD_ADDRESS") {
+            Ok(value) => Runner::StableDiffusionWebUI(value),
+            Err(_) => panic!("shit no addr"),
+        },
+    }
+}
 
 #[tokio::main]
 async fn main() {
@@ -18,10 +37,12 @@ async fn main() {
     // build our application with a single route
     let app = Router::new()
         .route("/", post(upload_file))
-        .layer(axum::extract::DefaultBodyLimit::max(100 * 1024 * 1024));
+        .layer(axum::extract::DefaultBodyLimit::max(300 * 1024 * 1024));
+
+    let upstream_runner = get_upstream_runner();
 
     // run it with hyper on localhost:3000
-    log::info!("running on 0.0.0.0:6679 to localhost:4443");
+    log::info!("running on 0.0.0.0:6679 to {:?}", upstream_runner);
     axum::Server::bind(&"0.0.0.0:6679".parse().unwrap())
         .serve(app.into_make_service())
         .await
@@ -74,34 +95,76 @@ async fn test_handler() -> Result<(), AppError> {
     Ok(())
 }
 
+#[derive(Serialize, Deserialize)]
+struct WD14Response {
+    caption: HashMap<String, f32>,
+}
+
 async fn send_image_to_dd(
     file_contents: Vec<u8>,
     file_name: String,
     file_mime_type: &str,
     options: &Options,
 ) -> anyhow::Result<WrappedResponse> {
-    let part = reqwest::multipart::Part::bytes(file_contents)
+    let part = reqwest::multipart::Part::bytes(file_contents.clone())
         .file_name(file_name)
         .mime_str(file_mime_type)
         .unwrap();
     let form = reqwest::multipart::Form::new().part("file", part);
 
-    log::debug!("calling dd");
+    let upstream_runner = get_upstream_runner();
 
-    let resp = reqwest::Client::new()
-        .post("http://localhost:4443")
-        .multipart(form)
-        .header("authorization", "Bearer 123")
-        .query(&[("threshold", options.threshold.clone())])
-        .send()
-        .await?;
+    match upstream_runner {
+        Runner::DeepDanbooru(url) => {
+            log::debug!("calling dd");
 
-    let body = resp.text().await?;
-    log::info!("body: {}", &body);
-    let json_response: WrappedResponse = serde_json::from_str(&body)?;
+            let resp = reqwest::Client::new()
+                .post(url)
+                .multipart(form)
+                .header("authorization", "Bearer 123")
+                .query(&[("threshold", options.threshold.clone())])
+                .send()
+                .await?;
 
-    log::debug!("called!");
-    Ok(json_response)
+            let body = resp.text().await?;
+            log::info!("body: {}", &body);
+            let json_response: WrappedResponse = serde_json::from_str(&body)?;
+
+            log::debug!("called!");
+            Ok(json_response)
+        }
+        Runner::StableDiffusionWebUI(url) => {
+            log::debug!("calling sd");
+
+            let mut map: HashMap<&str, &str> = HashMap::new();
+            let file_base64 = general_purpose::STANDARD.encode(file_contents.clone());
+
+            map.insert("model", "wd14-vit-v2-git");
+            map.insert("threshold", options.threshold.as_ref());
+            map.insert("image", &file_base64);
+
+            let serialized_map = serde_json::to_vec(&map).unwrap();
+
+            let resp = reqwest::Client::new()
+                .post(format!("{}/tagger/v1/interrogate", url))
+                .body(serialized_map)
+                .send()
+                .await?;
+
+            let body = resp.text().await?;
+            log::info!("body: {}", &body);
+            let json_response: WD14Response = serde_json::from_str(&body)?;
+
+            // turn WD14Response into WrappedResponse
+            let mut tags = Vec::<String>::new();
+            for ele in json_response.caption {
+                tags.push(ele.0.clone());
+            }
+
+            log::debug!("called!");
+            Ok(WrappedResponse::Tags(tags))
+        }
+    }
 }
 
 async fn fetch_frame_as_image(
@@ -139,7 +202,7 @@ async fn fetch_frame_as_image(
         })
         .await;
 
-    log::debug!("run");
+    log::debug!("run!");
     let output = ffmpeg.process.wait_with_output().unwrap();
 
     log::debug!("out");