diff --git a/.dockerignore b/.dockerignore
index e98d44a..197f5fd 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -1,4 +1,9 @@
 cmake-build-*/
 docker/
 docs/
-scripts/
\ No newline at end of file
+scripts/
+
+debug.Dockerfile
+
+# Include files:
+!docker/example_detector.json
diff --git a/core-buffer/include/buffer_config.hpp b/core-buffer/include/buffer_config.hpp
index c6f64be..ad5b12b 100644
--- a/core-buffer/include/buffer_config.hpp
+++ b/core-buffer/include/buffer_config.hpp
@@ -36,7 +36,7 @@ namespace buffer_config {
     // HWM for live stream from buffer.
     const int BUFFER_ZMQ_RCVHWM = 100;
     // IPC address of the live stream.
-    const std::string BUFFER_LIVE_IPC_URL = "ipc:///tmp/sf-live-";
+    const std::string IPC_URL_BASE = "ipc:///tmp/std-daq-";
     // Number of image slots in ram buffer - 10 seconds should be enough
     const int RAM_BUFFER_N_SLOTS = 100 * 10;
 }
diff --git a/core-buffer/include/formats.hpp b/core-buffer/include/formats.hpp
index 3fc1c6b..1d0f0f8 100644
--- a/core-buffer/include/formats.hpp
+++ b/core-buffer/include/formats.hpp
@@ -26,13 +26,14 @@ struct ModuleFrame {
 #pragma pack(push)
 #pragma pack(1)
 struct ImageMetadata {
+    uint64_t version;
     uint64_t id;
     uint64_t height;
     uint64_t width;
-    uint64_t dtype;
-    uint64_t encoding;
-    uint64_t source_id;
-    uint64_t status; 
+    uint16_t dtype;
+    uint16_t encoding;
+    uint16_t source_id;
+    uint16_t status;
     uint64_t user_1;
     uint64_t user_2;
 };
diff --git a/core-buffer/src/BufferUtils.cpp b/core-buffer/src/BufferUtils.cpp
index abe0a3d..2809341 100644
--- a/core-buffer/src/BufferUtils.cpp
+++ b/core-buffer/src/BufferUtils.cpp
@@ -94,7 +94,7 @@ void BufferUtils::create_destination_folder(const string& output_file)
 void* BufferUtils::connect_socket(
         void* ctx, const string& detector_name, const string& stream_name)
 {
-    string ipc_address = buffer_config::BUFFER_LIVE_IPC_URL +
+    string ipc_address = buffer_config::IPC_URL_BASE +
                          detector_name + "-" +
                          stream_name;
 
@@ -127,7 +127,7 @@ void* BufferUtils::connect_socket(
 void* BufferUtils::bind_socket(
         void* ctx, const string& detector_name, const string& stream_name)
 {
-    string ipc_address = BUFFER_LIVE_IPC_URL +
+    string ipc_address = IPC_URL_BASE +
                          detector_name + "-" +
                          stream_name;
 
diff --git a/std-det-writer/debug.Dockerfile b/debug.Dockerfile
similarity index 52%
rename from std-det-writer/debug.Dockerfile
rename to debug.Dockerfile
index eb0f094..7225593 100644
--- a/std-det-writer/debug.Dockerfile
+++ b/debug.Dockerfile
@@ -4,7 +4,10 @@ COPY . /sf_daq_buffer/
 
 RUN mkdir /sf_daq_buffer/build && \
     cd /sf_daq_buffer/build && \
-    cmake3 .. && \
-    make std-det-writer
+    # Build the project
+    cmake3 .. -DUSE_EIGER=1&& \
+    make && \
+    # Deploy the test config.
+    cp /sf_daq_buffer/docker/example_detector.json .
 
 WORKDIR /sf_daq_buffer/build
diff --git a/docker/example_detector.json b/docker/example_detector.json
new file mode 100644
index 0000000..02b0012
--- /dev/null
+++ b/docker/example_detector.json
@@ -0,0 +1,7 @@
+{
+  "detector_name": "cSAXS.EG01V01",
+  "detector_type": "eiger",
+  "n_modules": 4,
+  "image_n_pixels": 123456,
+  "start_udp_port": 50000
+}
\ No newline at end of file
diff --git a/std-det-writer/include/StdDetWriterConfig.hpp b/std-det-writer/include/DetWriterConfig.hpp
similarity index 61%
rename from std-det-writer/include/StdDetWriterConfig.hpp
rename to std-det-writer/include/DetWriterConfig.hpp
index 847439b..31e983a 100644
--- a/std-det-writer/include/StdDetWriterConfig.hpp
+++ b/std-det-writer/include/DetWriterConfig.hpp
@@ -8,8 +8,8 @@
 #include <string>
 #include <fstream>
 
-struct UdpRecvConfig {
-    static UdpRecvConfig from_json_file(const std::string& filename) {
+struct DetWriterConfig {
+    static DetWriterConfig from_json_file(const std::string& filename) {
         std::ifstream ifs(filename);
         rapidjson::IStreamWrapper isw(ifs);
         rapidjson::Document config_parameters;
@@ -17,16 +17,12 @@ struct UdpRecvConfig {
 
         return {
                 config_parameters["detector_name"].GetString(),
-                config_parameters["detector_type"].GetString(),
-                config_parameters["n_modules"].GetInt(),
-                config_parameters["start_udp_port"].GetInt(),
+                config_parameters["image_n_pixels"].GetInt(),
         };
     }
 
     const std::string detector_name;
-    const std::string detector_type;
-    const int n_modules;
-    const int start_udp_port;
+    const int image_n_pixels;
 };
 
 
diff --git a/std-det-writer/include/JFH5Writer.hpp b/std-det-writer/include/JFH5Writer.hpp
index b979285..2702f4e 100644
--- a/std-det-writer/include/JFH5Writer.hpp
+++ b/std-det-writer/include/JFH5Writer.hpp
@@ -13,7 +13,6 @@ extern "C" {
 class JFH5Writer {
 
     const std::string detector_name_;
-    const std::string root_folder_;
 
     static const int64_t NO_RUN_ID = -1;
 
@@ -35,24 +34,24 @@ class JFH5Writer {
     void close_file();
 
 public:
-    explicit JFH5Writer(
-            const std::string detector_name, const std::string root_folder);
+    JFH5Writer(std::string  detector_name);
     ~JFH5Writer();
 
-    void open_run(int64_t run_id,
-                  uint32_t n_images,
-                  uint32_t image_y_size,
-                  uint32_t image_x_size,
-                  uint32_t bits_per_pixel);
+    void open_run(const std::string& output_file,
+                  const int run_id,
+                  const int n_images,
+                  const int image_y_size,
+                  const int image_x_size,
+                  const int bits_per_pixel);
     void close_run();
 
-    void write_data(int64_t run_id,
-                    uint32_t index,
+    void write_data(const int64_t run_id,
+                    const uint32_t index,
                     const char* data);
 
-    void write_meta(int64_t run_id,
-                    uint32_t index,
-                    const ImageMetadata& meta);
+    void write_meta(const int64_t run_id,
+                    const uint32_t index,
+                    const ImageMetadata* meta);
 };
 
 #endif //JF_LIVE_WRITER_HPP
diff --git a/std-det-writer/include/WriterStats.hpp b/std-det-writer/include/WriterStats.hpp
index ba48a18..cacf89d 100644
--- a/std-det-writer/include/WriterStats.hpp
+++ b/std-det-writer/include/WriterStats.hpp
@@ -1,7 +1,6 @@
 #include <cstddef>
 #include <formats.hpp>
 #include <chrono>
-#include "broker_format.hpp"
 
 #ifndef SF_DAQ_BUFFER_FRAMESTATS_HPP
 #define SF_DAQ_BUFFER_FRAMESTATS_HPP
@@ -23,8 +22,8 @@ class WriterStats {
     void print_stats();
 
 public:
-    explicit WriterStats(std::string detector_name);
-    void start_run(const StoreStream& meta);
+    explicit WriterStats(std::string detector_name,
+            const uint64_t image_n_bytes);
     void end_run();
     void start_image_write();
     void end_image_write();
diff --git a/std-det-writer/include/broker_format.hpp b/std-det-writer/include/broker_format.hpp
deleted file mode 100644
index dd45175..0000000
--- a/std-det-writer/include/broker_format.hpp
+++ /dev/null
@@ -1,20 +0,0 @@
-#ifndef SF_DAQ_BUFFER_BROKER_FORMAT_HPP
-#define SF_DAQ_BUFFER_BROKER_FORMAT_HPP
-
-#include "formats.hpp"
-
-
-#pragma pack(push)
-#pragma pack(1)
-struct StoreStream {
-    ImageMetadata image_metadata;
-
-    int64_t run_id;
-    uint32_t i_image;
-    uint32_t n_images;
-    uint32_t image_y_size;
-    uint32_t image_x_size;
-    uint32_t bits_per_pixel;
-};
-#pragma pack(pop)
-#endif //SF_DAQ_BUFFER_BROKER_FORMAT_HPP
diff --git a/std-det-writer/src/JFH5Writer.cpp b/std-det-writer/src/JFH5Writer.cpp
index 3e58a1d..cdb5deb 100644
--- a/std-det-writer/src/JFH5Writer.cpp
+++ b/std-det-writer/src/JFH5Writer.cpp
@@ -1,5 +1,6 @@
 #include <H5version.h>
 #include <iostream>
+#include <utility>
 
 #include "JFH5Writer.hpp"
 #include "live_writer_config.hpp"
@@ -15,10 +16,8 @@ using namespace std;
 using namespace buffer_config;
 using namespace live_writer_config;
 
-JFH5Writer::JFH5Writer(
-        const std::string detector_name, const std::string root_folder):
-            detector_name_(detector_name),
-            root_folder_(root_folder)
+JFH5Writer::JFH5Writer(std::string detector_name):
+    detector_name_(std::move(detector_name))
 {
 }
 
@@ -42,22 +41,20 @@ hid_t JFH5Writer::get_datatype(const int bits_per_pixel)
     }
 }
 
-void JFH5Writer::open_run(const int64_t run_id,
-                          const uint32_t n_images,
-                          const uint32_t image_y_size,
-                          const uint32_t image_x_size,
-                          const uint32_t bits_per_pixel)
+void JFH5Writer::open_run(const string& output_file,
+                          const int run_id,
+                          const int n_images,
+                          const int image_y_size,
+                          const int image_x_size,
+                          const int dtype)
 {
     close_run();
 
-    const string output_folder = root_folder_ + "/" + OUTPUT_FOLDER_SYMLINK;
-    // TODO: Maybe add leading zeros to filename?
-    const string output_file = output_folder + to_string(run_id) + ".h5";
-
     current_run_id_ = run_id;
     image_y_size_ = image_y_size;
     image_x_size_ = image_x_size;
-    bits_per_pixel_ = bits_per_pixel;
+    // The last digit in the enum value represents the number of bytes/pixel.
+    bits_per_pixel_ = (dtype % 10) * 8;
     image_n_bytes_ = (image_y_size_ * image_x_size_ * bits_per_pixel_) / 8;
 
 #ifdef DEBUG_OUTPUT
@@ -237,7 +234,7 @@ void JFH5Writer::write_data(
 }
 
 void JFH5Writer::write_meta(
-        const int64_t run_id, const uint32_t index, const ImageMetadata& meta)
+        const int64_t run_id, const uint32_t index, const ImageMetadata* meta)
 {
     if (run_id != current_run_id_) {
         throw runtime_error("Invalid run_id.");
@@ -264,12 +261,12 @@ void JFH5Writer::write_meta(
     }
 
     if (H5Dwrite(image_id_dataset_, H5T_NATIVE_UINT64,
-                 ram_ds, file_ds, H5P_DEFAULT, &(meta.id)) < 0) {
+                 ram_ds, file_ds, H5P_DEFAULT, &(meta->id)) < 0) {
         throw runtime_error("Cannot write data to pulse_id dataset.");
     }
 
     if (H5Dwrite(status_dataset_, H5T_NATIVE_UINT64,
-                 ram_ds, file_ds, H5P_DEFAULT, &(meta.status)) < 0) {
+                 ram_ds, file_ds, H5P_DEFAULT, &(meta->status)) < 0) {
         throw runtime_error("Cannot write data to is_good_image dataset.");
     }
 
diff --git a/std-det-writer/src/WriterStats.cpp b/std-det-writer/src/WriterStats.cpp
index 87f2800..83ce848 100644
--- a/std-det-writer/src/WriterStats.cpp
+++ b/std-det-writer/src/WriterStats.cpp
@@ -5,8 +5,9 @@
 using namespace std;
 using namespace chrono;
 
-WriterStats::WriterStats(string detector_name) :
-    detector_name_(std::move(detector_name))
+WriterStats::WriterStats(string detector_name, size_t image_n_bytes) :
+    detector_name_(std::move(detector_name)),
+    image_n_bytes_(image_n_bytes)
 {
    reset_counters();
 }
@@ -36,13 +37,6 @@ void WriterStats::end_image_write()
     max_buffer_write_us_ = max(max_buffer_write_us_, write_us_duration);
 }
 
-void WriterStats::start_run(const StoreStream& meta)
-{
-    image_n_bytes_ = (meta.image_y_size *
-                      meta.image_x_size *
-                      meta.bits_per_pixel) / 8;
-}
-
 void WriterStats::end_run()
 {
     print_stats();
diff --git a/std-det-writer/src/main.cpp b/std-det-writer/src/main.cpp
index 4af58a7..f6cacc9 100644
--- a/std-det-writer/src/main.cpp
+++ b/std-det-writer/src/main.cpp
@@ -7,8 +7,10 @@
 #include "BufferUtils.hpp"
 #include "live_writer_config.hpp"
 #include "WriterStats.hpp"
-#include "broker_format.hpp"
 #include "JFH5Writer.hpp"
+#include "DetWriterConfig.hpp"
+
+#include "rapidjson/document.h"
 
 using namespace std;
 using namespace buffer_config;
@@ -16,16 +18,19 @@ using namespace live_writer_config;
 
 int main (int argc, char *argv[])
 {
-    if (argc != 2) {
+    if (argc != 3) {
         cout << endl;
-        cout << "Usage: jf_live_writer [detector_json_filename]" << endl;
+        cout << "Usage: std-det-writer [detector_json_filename]"
+                " [bit_depth]" << endl;
         cout << "\tdetector_json_filename: detector config file path." << endl;
+        cout << "\tbit_depth: bit depth of the incoming udp packets." << endl;
         cout << endl;
 
         exit(-1);
     }
 
-    auto const config = BufferUtils::read_json_config(string(argv[1]));
+    auto const config = DetWriterConfig::from_json_file(string(argv[1]));
+    const int bit_depth = atoi(argv[2]);
 
     MPI_Init(nullptr, nullptr);
 
@@ -38,50 +43,66 @@ int main (int argc, char *argv[])
     auto ctx = zmq_ctx_new();
     zmq_ctx_set(ctx, ZMQ_IO_THREADS, LIVE_ZMQ_IO_THREADS);
     auto receiver = BufferUtils::connect_socket(
-            ctx, config.detector_name, "writer-agent");
+            ctx, config.detector_name, "writer_agent");
 
-    const size_t IMAGE_N_BYTES = 12;
+    const size_t IMAGE_N_BYTES = config.image_n_pixels * bit_depth / 8;
     RamBuffer image_buffer(config.detector_name + "_assembler",
             sizeof(ImageMetadata), IMAGE_N_BYTES, 1, RAM_BUFFER_N_SLOTS);
 
-    JFH5Writer writer(config);
-    WriterStats stats(config.detector_name);
+    JFH5Writer writer(config.detector_name);
+    WriterStats stats(config.detector_name, IMAGE_N_BYTES);
 
-    StoreStream meta = {};
+    char recv_buffer[8192];
     while (true) {
-        zmq_recv(receiver, &meta, sizeof(meta), 0);
+        zmq_recv(receiver, &recv_buffer, sizeof(recv_buffer), 0);
 
-        // i_image == 0 -> we have a new run.
-        if (meta.i_image == 0) {
-            writer.open_run(meta.run_id,
-                            meta.n_images,
-                            meta.image_y_size,
-                            meta.image_x_size,
-                            meta.bits_per_pixel);
-
-            stats.start_run(meta);
+        rapidjson::Document document;
+        if (document.Parse(recv_buffer).HasParseError()) {
+            continue;
         }
 
+        const string output_file = document["output_file"].GetString();
+        const uint64_t image_id = document["image_id"].GetUint64();
+        const int run_id = document["run_id"].GetInt();
+        const int i_image = document["i_image"].GetInt();
+        const int n_images = document["n_images"].GetInt();
+
         // i_image == n_images -> end of run.
-        if (meta.i_image == meta.n_images) {
+        if (i_image == n_images) {
             writer.close_run();
 
             stats.end_run();
             continue;
         }
 
+        // i_image == 0 -> we have a new run.
+        if (i_image == 0) {
+            auto image_meta = (ImageMetadata*)
+                    image_buffer.get_slot_meta(image_id);
+
+            writer.open_run(output_file,
+                            run_id,
+                            n_images,
+                            image_meta->height,
+                            image_meta->width,
+                            image_meta->dtype);
+        }
+
+
         // Fair distribution of images among writers.
-        if (meta.i_image % n_writers == i_writer) {
-            char* data = ram_buffer.get_slot_data(meta.image_metadata.id);
+        if (i_image % n_writers == i_writer) {
+            char* data = image_buffer.get_slot_data(image_id);
 
             stats.start_image_write();
-            writer.write_data(meta.run_id, meta.i_image, data);
+            writer.write_data(run_id, i_image, data);
             stats.end_image_write();
         }
 
         // Only the first instance writes metadata.
         if (i_writer == 0) {
-            writer.write_meta(meta.run_id, meta.i_image, meta.image_metadata);
+            auto image_meta = (ImageMetadata*)
+                    image_buffer.get_slot_meta(image_id);
+            writer.write_meta(run_id, i_image, image_meta);
         }
 
     }
diff --git a/std-det-writer/test/CMakeLists.txt b/std-det-writer/test/CMakeLists.txt
index 8f806b0..8afe069 100644
--- a/std-det-writer/test/CMakeLists.txt
+++ b/std-det-writer/test/CMakeLists.txt
@@ -1,7 +1,7 @@
-add_executable(jf-live-writer-tests main.cpp)
+add_executable(std-det-writer-tests main.cpp)
 
-target_link_libraries(jf-live-writer-tests
-        jf-live-writer-lib
+target_link_libraries(std-det-writer-tests
+        std-det-writer-lib
         zmq
         rt
         gtest
diff --git a/std-stream-send/include/StreamSendConfig.hpp b/std-stream-send/include/StreamSendConfig.hpp
index 5bf5531..9709aa8 100644
--- a/std-stream-send/include/StreamSendConfig.hpp
+++ b/std-stream-send/include/StreamSendConfig.hpp
@@ -19,14 +19,12 @@ struct StreamSendConfig {
                 config_parameters["detector_name"].GetString(),
                 config_parameters["n_modules"].GetInt(),
                 config_parameters["image_n_pixels"].GetInt(),
-                config_parameters["stream_address"].GetString()
         };
     }
 
     const std::string detector_name;
     const int n_modules;
     const int image_n_pixels;
-    const std::string stream_address;
 };
 
 
diff --git a/std-stream-send/src/main.cpp b/std-stream-send/src/main.cpp
index 2418c87..e1894f7 100644
--- a/std-stream-send/src/main.cpp
+++ b/std-stream-send/src/main.cpp
@@ -13,12 +13,13 @@ using namespace buffer_config;
 
 int main (int argc, char *argv[])
 {
-    if (argc != 3) {
+    if (argc != 4) {
         cout << endl;
         cout << "Usage: std_stream_send [detector_json_filename]"
-                " [bit_depth]" << endl;
+                " [bit_depth] [stream_address]" << endl;
         cout << "\tdetector_json_filename: detector config file path." << endl;
         cout << "\tbit_depth: bit depth of the incoming udp packets." << endl;
+        cout << "\tstream_address: address to bind the output stream." << endl;
         cout << endl;
 
         exit(-1);
@@ -26,6 +27,7 @@ int main (int argc, char *argv[])
 
     const auto config = StreamSendConfig::from_json_file(string(argv[1]));
     const int bit_depth = atoi(argv[2]);
+    const string stream_address = string(argv[3]);
 
     auto ctx = zmq_ctx_new();
     zmq_ctx_set(ctx, ZMQ_IO_THREADS, STREAM_ZMQ_IO_THREADS);
@@ -43,7 +45,7 @@ int main (int argc, char *argv[])
         throw runtime_error(zmq_strerror(errno));
     }
 
-    if (zmq_bind(sender, config.stream_address.c_str()) != 0) {
+    if (zmq_bind(sender, stream_address.c_str()) != 0) {
         throw runtime_error(zmq_strerror(errno));
     }