diff --git a/url-downloader/README.md b/url-downloader/README.md
new file mode 100644
index 0000000..12d1b45
--- /dev/null
+++ b/url-downloader/README.md
@@ -0,0 +1,13 @@
+# Download file to disk
+
+Example to show how to work with disk + link several .wasm modules into a service.
+
+# Build & deploy it
+```shell
+./deploy.sh
+```
+
+# Call it
+```shell
+fldist run_air -p download.air -d '{"service": "f7db6966-2d75-4424-812e-85e2ec5cb61b"}'
+```
diff --git a/url-downloader/artifacts/curl_adapter.json b/url-downloader/artifacts/curl_adapter.json
new file mode 100644
index 0000000..9de081f
--- /dev/null
+++ b/url-downloader/artifacts/curl_adapter.json
@@ -0,0 +1,7 @@
+{
+  "name": "curl_adapter",
+  "mountedBinaries":
+    {
+      "curl": "/usr/bin/curl"
+    }
+}
diff --git a/url-downloader/artifacts/facade.json b/url-downloader/artifacts/facade.json
new file mode 100644
index 0000000..180ed7e
--- /dev/null
+++ b/url-downloader/artifacts/facade.json
@@ -0,0 +1 @@
+{"name": "facade"}
diff --git a/url-downloader/artifacts/local_storage.json b/url-downloader/artifacts/local_storage.json
new file mode 100644
index 0000000..c4c3ad2
--- /dev/null
+++ b/url-downloader/artifacts/local_storage.json
@@ -0,0 +1,12 @@
+{
+  "name": "local_storage",
+  "preopenedFiles": [
+    "/tmp"
+  ],
+  "mappedDirs": {
+    "sites": "/tmp"
+  },
+  "mountedBinaries": {
+    "curl": "/usr/bin/curl"
+  }
+}
diff --git a/url-downloader/build.sh b/url-downloader/build.sh
index bacc9ad..fba8560 100755
--- a/url-downloader/build.sh
+++ b/url-downloader/build.sh
@@ -1,18 +1,24 @@
-#!/bin/sh
+#!/bin/sh -euo pipefail
 
 # This script builds all subprojects and puts all created Wasm modules in one dir
-cd local_storage
-cargo update
-fce build --release
-cd ../curl_adapter
-cargo update
-fce build --release
-cd ../facade
-cargo update
-fce build --release
+(
+  cd local_storage
+  cargo update
+  fce build --release
+)
+(
+  cd curl_adapter
+  cargo update
+  fce build --release
+)
+(
+  cd facade
+  cargo update
+  fce build --release
+)
 
-cd ..
-rm -f artifacts/*
-cp ../../target/wasm32-wasi/release/local_storage.wasm artifacts/
-cp ../../target/wasm32-wasi/release/curl_adapter.wasm artifacts/
-cp ../../target/wasm32-wasi/release/facade.wasm artifacts/
+mkdir -p artifacts
+rm -f artifacts/*.wasm
+cp local_storage/target/wasm32-wasi/release/local_storage.wasm artifacts/
+cp curl_adapter/target/wasm32-wasi/release/curl_adapter.wasm artifacts/
+cp facade/target/wasm32-wasi/release/facade.wasm artifacts/
diff --git a/url-downloader/compose.air b/url-downloader/compose.air
new file mode 100644
index 0000000..b568a53
--- /dev/null
+++ b/url-downloader/compose.air
@@ -0,0 +1,13 @@
+(xor
+    (seq
+        (seq
+           (seq
+               (call relay (curl "download") ["https://fluence.network/img/svg/logo_new.svg"] contents)
+               (call relay (storage "put") ["logo.svg" contents.$.stdout!] ret_code)
+           )
+           (call relay (storage "get") ["logo.svg"] bytes)
+        )
+        (call %init_peer_id% (returnService "run") [ret_code bytes])
+    )
+    (call %init_peer_id% (returnService "run") [%last_error%])
+)
diff --git a/url-downloader/curl_adapter/src/main.rs b/url-downloader/curl_adapter/src/main.rs
index c3e6acc..5903153 100644
--- a/url-downloader/curl_adapter/src/main.rs
+++ b/url-downloader/curl_adapter/src/main.rs
@@ -17,12 +17,10 @@
 #![allow(improper_ctypes)]
 
 use fluence::fce;
-use fluence::module_manifest;
 
 use fluence::WasmLoggerBuilder;
-use fluence::MountedBinaryResult;
-
-module_manifest!();
+use fluence::MountedBinaryResult as Result;
+use fluence::MountedBinaryStringResult as StringResult;
 
 /// Log level can be changed by `RUST_LOG` env as well.
 pub fn main() {
@@ -30,16 +28,21 @@ pub fn main() {
 }
 
 #[fce]
-pub fn download(url: String) -> String {
-    log::info!("get called with url {}", url);
-
-    let result = unsafe { curl(vec![url]) };
-    String::from_utf8(result.stdout).unwrap()
+pub fn request(url: String) -> StringResult {
+    unsafe { curl(vec![url]) }.stringify().unwrap()
 }
 
+#[fce]
+pub fn download(url: String) -> Result {
+    log::info!("download called with url {}", url);
+
+    unsafe { curl(vec![url]) }
+}
+
+
 /// Permissions in `Config.toml` should exist to use host functions.
 #[fce]
 #[link(wasm_import_module = "host")]
 extern "C" {
-    fn curl(cmd: Vec<String>) -> MountedBinaryResult;
+    fn curl(cmd: Vec<String>) -> Result;
 }
diff --git a/url-downloader/deploy.sh b/url-downloader/deploy.sh
new file mode 100755
index 0000000..9b42425
--- /dev/null
+++ b/url-downloader/deploy.sh
@@ -0,0 +1,12 @@
+#!/bin/sh -euo pipefail
+
+# build wasms
+./build.sh
+
+(
+  cd artifacts
+  fldist new_service --name "url_downloader" --modules \
+    curl_adapter.wasm:curl_adapter.json \
+    local_storage.wasm:local_storage.json \
+    facade.wasm:facade.json
+)
diff --git a/url-downloader/deploy_separate.sh b/url-downloader/deploy_separate.sh
new file mode 100755
index 0000000..9753639
--- /dev/null
+++ b/url-downloader/deploy_separate.sh
@@ -0,0 +1,15 @@
+#!/bin/sh -euo pipefail
+
+./build.sh
+
+echo "Deploying storage"
+(
+  cd artifacts
+  fldist new_service --name "local_storage" --modules local_storage.wasm:local_storage.json
+)
+
+echo "\n\nDeploying curl"
+(
+  cd artifacts
+  fldist new_service --name "curl_adapter" --modules curl_adapter.wasm:curl_adapter.json
+)
diff --git a/url-downloader/download.air b/url-downloader/download.air
new file mode 100644
index 0000000..d8a1334
--- /dev/null
+++ b/url-downloader/download.air
@@ -0,0 +1,10 @@
+(xor
+    (seq
+        (seq
+           (call relay (service "get_n_save") ["https://fluence.network/img/svg/logo_new.svg" "logo.svg"] ret_code)
+           (call relay (service "load_file") ["logo.svg"] bytes)
+        )
+        (call %init_peer_id% (returnService "run") [ret_code bytes])
+    )
+    (call %init_peer_id% (returnService "run") [%last_error%])
+)
diff --git a/url-downloader/facade/Cargo.lock b/url-downloader/facade/Cargo.lock
new file mode 100644
index 0000000..d98a1f5
--- /dev/null
+++ b/url-downloader/facade/Cargo.lock
@@ -0,0 +1,192 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+[[package]]
+name = "anyhow"
+version = "1.0.38"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "afddf7f520a80dbf76e6f50a35bca42a2331ef227a28b3b6dc5c2e2338d114b1"
+
+[[package]]
+name = "base64"
+version = "0.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "904dfeac50f3cdaba28fc6f57fdcddb75f49ed61346676a78c4ffe55877802fd"
+
+[[package]]
+name = "cfg-if"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+
+[[package]]
+name = "facade"
+version = "0.1.0"
+dependencies = [
+ "anyhow",
+ "base64",
+ "fluence",
+ "log",
+]
+
+[[package]]
+name = "fluence"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "342831732a977f13220ecd6f25c7e6b6127af8d3794d42e3c880b05e457a0484"
+dependencies = [
+ "fluence-sdk-macro",
+ "fluence-sdk-main",
+]
+
+[[package]]
+name = "fluence-sdk-macro"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "00c840552e5e58b62d4a272e3e4aabd548e1a4519df629a51d42157c7ecbe653"
+dependencies = [
+ "fluence-sdk-wit",
+]
+
+[[package]]
+name = "fluence-sdk-main"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1f1d126f05a798c8f812fbe47a42145478ce8029e00411b04d1c5194ab368313"
+dependencies = [
+ "fluence-sdk-macro",
+ "log",
+ "serde",
+]
+
+[[package]]
+name = "fluence-sdk-wit"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0ac71e8d48a8e2bdaccf59572dc7a8e8a1ad0de512fc452107756e37ac0bf752"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "serde",
+ "serde_json",
+ "syn",
+ "uuid",
+]
+
+[[package]]
+name = "getrandom"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c9495705279e7140bf035dde1f6e750c162df8b625267cd52cc44e0b156732c8"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "wasi",
+]
+
+[[package]]
+name = "itoa"
+version = "0.4.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dd25036021b0de88a0aff6b850051563c6516d0bf53f8638938edbb9de732736"
+
+[[package]]
+name = "libc"
+version = "0.2.89"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "538c092e5586f4cdd7dd8078c4a79220e3e168880218124dcbce860f0ea938c6"
+
+[[package]]
+name = "log"
+version = "0.4.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "51b9bbe6c47d51fc3e1a9b945965946b4c44142ab8792c50835a980d362c2710"
+dependencies = [
+ "cfg-if",
+]
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e0704ee1a7e00d7bb417d0770ea303c1bccbabf0ef1667dae92b5967f5f8a71"
+dependencies = [
+ "unicode-xid",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c3d0b9745dc2debf507c8422de05d7226cc1f0644216dfdfead988f9b1ab32a7"
+dependencies = [
+ "proc-macro2",
+]
+
+[[package]]
+name = "ryu"
+version = "1.0.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "71d301d4193d031abdd79ff7e3dd721168a9572ef3fe51a1517aba235bd8f86e"
+
+[[package]]
+name = "serde"
+version = "1.0.118"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "06c64263859d87aa2eb554587e2d23183398d617427327cf2b3d0ed8c69e4800"
+dependencies = [
+ "serde_derive",
+]
+
+[[package]]
+name = "serde_derive"
+version = "1.0.118"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c84d3526699cd55261af4b941e4e725444df67aa4f9e6a3564f18030d12672df"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "serde_json"
+version = "1.0.64"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "799e97dc9fdae36a5c8b8f2cae9ce2ee9fdce2058c57a93e6099d919fd982f79"
+dependencies = [
+ "itoa",
+ "ryu",
+ "serde",
+]
+
+[[package]]
+name = "syn"
+version = "1.0.64"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3fd9d1e9976102a03c542daa2eff1b43f9d72306342f3f8b3ed5fb8908195d6f"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-xid",
+]
+
+[[package]]
+name = "unicode-xid"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f7fe0bb3479651439c9112f72b6c505038574c9fbb575ed1bf3b797fa39dd564"
+
+[[package]]
+name = "uuid"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bc5cf98d8186244414c848017f0e2676b3fcb46807f6668a97dfe67359a3c4b7"
+dependencies = [
+ "getrandom",
+]
+
+[[package]]
+name = "wasi"
+version = "0.10.2+wasi-snapshot-preview1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fd6fbd9a79829dd1ad0cc20627bf1ed606756a7f77edff7b66b7064f9cb327c6"
diff --git a/url-downloader/facade/Cargo.toml b/url-downloader/facade/Cargo.toml
index d40090f..7c71f24 100644
--- a/url-downloader/facade/Cargo.toml
+++ b/url-downloader/facade/Cargo.toml
@@ -13,3 +13,4 @@ path = "src/main.rs"
 fluence = { version = "=0.5.0", features = ["logger"]}
 anyhow = "1.0.31"
 log = "0.4.8"
+base64 = "0.13.0"
diff --git a/url-downloader/facade/src/main.rs b/url-downloader/facade/src/main.rs
index 8ff919b..4f2eb8c 100644
--- a/url-downloader/facade/src/main.rs
+++ b/url-downloader/facade/src/main.rs
@@ -18,6 +18,7 @@
 use fluence::fce;
 use fluence::module_manifest;
 use fluence::WasmLoggerBuilder;
+use fluence::MountedBinaryResult as Result;
 
 module_manifest!();
 
@@ -30,19 +31,30 @@ pub fn main() {
 #[fce]
 pub fn get_n_save(url: String, file_name: String) -> String {
     let result = unsafe { download(url) };
-    unsafe { file_put(file_name, result.into_bytes()) };
-
-    String::from("Ok")
+    if result.is_success() {
+        log::info!("saving file {}", file_name);
+        unsafe { file_put(file_name, result.stdout) }
+    } else {
+        log::error!("download failed: {:#?}", result.as_std());
+        format!("download failed: {:#?}", result.as_std())
+    }
 }
 
-/// Importing `curl` module
+#[fce]
+/// Loads file from disk and returns its content as base64
+pub fn load_file(file_name: String) -> String {
+    let bytes = unsafe { file_get(file_name) };
+    base64::encode(bytes)
+}
+
+/// Import `curl_adapter` module
 #[fce]
 #[link(wasm_import_module = "curl_adapter")]
 extern "C" {
-    pub fn download(url: String) -> String;
+    pub fn download(url: String) -> Result;
 }
 
-/// Importing `local_storage` module
+/// Import `local_storage` module
 #[fce]
 #[link(wasm_import_module = "local_storage")]
 extern "C" {
diff --git a/url-downloader/local_storage/src/main.rs b/url-downloader/local_storage/src/main.rs
index 8f6dabb..0f50966 100644
--- a/url-downloader/local_storage/src/main.rs
+++ b/url-downloader/local_storage/src/main.rs
@@ -14,14 +14,10 @@
  * limitations under the License.
  */
 
-use fluence::fce;
-use fluence::module_manifest;
-use fluence::WasmLoggerBuilder;
-
 use std::fs;
-use std::path::PathBuf;
-
-module_manifest!();
+use fluence::fce;
+use fluence::WasmLoggerBuilder;
+use std::path::Path;
 
 const SITES_DIR: &str = "/sites/";
 
@@ -32,14 +28,14 @@ pub fn main() {
 
 /// You can read or write files from the file system if there is permission to use directories described in `Config.toml`.
 #[fce]
-pub fn put(name: String, file_content: Vec<u8>) -> String {
-    log::info!("put called with file name {}", name);
+pub fn put(file_name: String, file_content: Vec<u8>) -> String {
+    log::info!("put called with file name {}", file_name);
 
-    let rpc_tmp_filepath = format!("{}{}", SITES_DIR, name);
+    let path = Path::new(SITES_DIR).join(file_name);
 
-    let result = fs::write(PathBuf::from(rpc_tmp_filepath.clone()), file_content);
+    let result = fs::write(&path, file_content);
     if let Err(e) = result {
-        return format!("file can't be written: {}", e);
+        return format!("file {} can't be written: {}", path.to_string_lossy(), e);
     }
 
     String::from("Ok")
@@ -49,7 +45,7 @@ pub fn put(name: String, file_content: Vec<u8>) -> String {
 pub fn get(file_name: String) -> Vec<u8> {
     log::info!("get called with file name: {}", file_name);
 
-    let tmp_filepath = format!("{}{}", SITES_DIR, file_name);
+    let path = Path::new(SITES_DIR).join(file_name);
 
-    fs::read(tmp_filepath).unwrap_or_else(|_| b"error while reading file".to_vec())
+    fs::read(&path).unwrap_or_else(|err| format!("error while reading file {}: {}", path.to_string_lossy(), err).into_bytes())
 }
diff --git a/url-downloader/repl_config.toml b/url-downloader/repl_config.toml
new file mode 100644
index 0000000..6701450
--- /dev/null
+++ b/url-downloader/repl_config.toml
@@ -0,0 +1,21 @@
+modules_dir = "artifacts/"
+
+[[module]]
+name = "local_storage"
+logger_enabled = true
+
+[module.wasi]
+preopened_files = ["."]
+# this is where files will be stored
+mapped_dirs = { "sites" = "." }
+
+[[module]]
+name = "curl_adapter"
+logger_enabled = true
+
+[module.mounted_binaries]
+curl = "/usr/bin/curl"
+
+[[module]]
+name = "facade"
+logger_enabled = true