diff --git a/src/main.rs b/src/main.rs
index c4a462f..761c197 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -26,8 +26,15 @@ struct Cli{
 
 #[derive(Subcommand)]
 enum Commands{
-	Download(AssetIDList),
-	Upload{path:std::path::PathBuf,asset_id:AssetID},
+	Download(AssetIDFileMapBad),
+	Upload(AssetIDFileMapBad),
+}
+
+//idk how to make this a list of key-value pairs
+#[derive(Args)]
+struct AssetIDFileMapBad{
+	asset_ids:Vec<AssetID>,
+	files:Vec<std::path::PathBuf>,
 }
 
 #[derive(Args)]
@@ -35,11 +42,6 @@ struct PathBufList{
 	paths:Vec<std::path::PathBuf>
 }
 
-#[derive(Args)]
-struct AssetIDList{
-	asset_ids:Vec<AssetID>,
-}
-
 #[tokio::main]
 async fn main()->AResult<()>{
 	let cli=Cli::parse();
@@ -64,8 +66,8 @@ async fn main()->AResult<()>{
 	};
 
 	match cli.command{
-		Commands::Download(asset_id_list)=>download_list(cookie,asset_id_list.asset_ids).await,
-		Commands::Upload{path,asset_id}=>upload_list(cookie,group,path,asset_id).await,
+		Commands::Download(asset_id_file_map)=>download_list(cookie,transpose_asset_id_file_map(asset_id_file_map)?).await,
+		Commands::Upload(asset_id_file_map)=>upload_list(cookie,group,transpose_asset_id_file_map(asset_id_file_map)?).await,
 	}
 }
 
@@ -97,7 +99,17 @@ fn maybe_gzip_decode<R:Read+Seek>(input:&mut R)->AResult<ReaderType<R>>{
 	}
 }
 
-async fn upload_list(_cookie:String,_owner:Owner,_path:std::path::PathBuf,_asset_id:AssetID)->AResult<()>{
+type AssetIDFileMap=Vec<(AssetID,std::path::PathBuf)>;
+
+fn transpose_asset_id_file_map(asset_id_file_map:AssetIDFileMapBad)->AResult<AssetIDFileMap>{
+	if asset_id_file_map.asset_ids.len()==asset_id_file_map.files.len(){
+		Ok(asset_id_file_map.asset_ids.into_iter().zip(asset_id_file_map.files.into_iter()).collect())
+	}else{
+		Err(anyhow::Error::msg("Asset list did not match file list."))
+	}
+}
+
+async fn upload_list(cookie:String,owner:Owner,asset_id_file_map:AssetIDFileMap)->AResult<()>{
 	Ok(())
 }
 
@@ -107,24 +119,23 @@ fn read_readable(mut readable:impl Read)->AResult<Vec<u8>>{
 	Ok(contents)
 }
 
-async fn download_list(cookie:String,asset_ids:Vec<AssetID>)->AResult<()>{
+async fn download_list(cookie:String,asset_id_file_map:AssetIDFileMap)->AResult<()>{
 	let client=reqwest::Client::new();
-	futures::stream::iter(asset_ids)
-	.map(|asset_id|{
+	futures::stream::iter(asset_id_file_map)
+	.map(|(asset_id,file)|{
 		let client=&client;
 		let cookie=cookie.as_str();
 		async move{
 			let resp=client.get(format!("https://assetdelivery.roblox.com/v1/asset/?ID={}",asset_id))
 			.header("Cookie",cookie)
 			.send().await?;
-			Ok((asset_id,resp.bytes().await?))
+			Ok((file,resp.bytes().await?))
 		}
 	})
 	.buffer_unordered(CONCURRENT_REQUESTS)
 	.for_each(|b:AResult<_>|async{
 			match b{
-				Ok((asset_id,body))=>{
-					let dest=std::path::PathBuf::from(asset_id.to_string());
+				Ok((dest,body))=>{
 					let contents=match maybe_gzip_decode(&mut std::io::Cursor::new(body)){
 						Ok(ReaderType::GZip(readable))=>read_readable(readable),
 						Ok(ReaderType::Raw(readable))=>read_readable(readable),