diff --git a/README.md b/README.md
index f9af1ca..38f3f09 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,50 @@
 # Gymboard
-Leaderboards for your local community gym.
+Leaderboards and social lifting for your local community gym.
+
+Gymboard is a platform for sharing videos of your gym lifts with the world,
+from your local gym to the world's stage.
+
+## Architecture Overview
+
+Gymboard is designed as a sort of hybrid architecture combining the best of
+microservices and monoliths. Here's a short list of each project that makes
+up the Gymboard ecosystem, and what they do:
+
+| Project | Type | Description |
+| ---     | ---  | ---         |
+| 💻 **gymboard-app** | TS, VueJS, Quasar | A front-end web application for users accessing Gymboard. |
+| 🧬 **gymboard-api** | Java, Spring | The *main* backend service that the app talks to. Includes auth and most business logic. |
+| 🔍 **gymboard-search** | Java, Lucene | An indexing and searching service that scrapes data from *gymboard-api* to build Lucene search indexes. |
+| 🗂 **gymboard-cdn** | Java, Spring | A minimal content-delivery service that manages general file storage, including video processing. |
+| 🛠 **gymboard-cli** | D | **WIP** command-line-interface for managing all services for development and deployment. |
+| 📸 **gymboard-uploads** | D, Handy-Httpd | **WIP** dedicated service for video upload processing, to extract functionality from *gymboard-cdn*. |
 
 ## Development
-Gymboard is comprised of a variety of components, each in its own directory, and with its own project format. Follow the instructions in the README of the respective project to set that one up.
 
-A `docker-compose.yml` file is defined in this directory, and it defines a set of services that may be used by one or more services. Install docker on your system if you haven't already, and run `docker-compose up -d` to start the services.
+Gymboard is comprised of a variety of components, each in its own directory,
+and with its own project format. Follow the instructions in the README of the
+respective project to set that one up.
+
+A `docker-compose.yml` file is defined in this directory, and it defines a set
+of services that may be used by one or more services. Install docker on your
+system if you haven't already, and run `docker-compose up -d` to start the
+services.
+
+**WIP:**
+A `build_apps.d` script is available to try and build all projects and collect
+their artifacts in a `build/` directory for deployment.
+> Eventually, this functionality will be merged into *gymboard-cli*.
+
+### Local Environment
+
+The requirements to develop each project depend of course on the type of
+project. But in general, the following software recommendations should hold:
+
+| Type | Requirements |
+| ---  | ---          |
+| **Java** | [Latest LTS version](https://adoptium.net/en-GB/temurin/releases/), latest Maven version |
+| **VueJS** | Vue 3, with a recent version of NodeJS and NPM or similar. |
+| **D** | [D toolchain](https://dlang.org/download.html) (compiler + dub) for D version >= 2.103, DMD recommended compiler |
+
+[Docker](https://www.docker.com/) is recommended for running local dependencies
+like DB, mail server, message queues, etc.
diff --git a/build_apps.d b/build_apps.d
index db1b9df..3b781d6 100755
--- a/build_apps.d
+++ b/build_apps.d
@@ -6,6 +6,8 @@
  * thread.
  *
  * Supply the "clean" command to remove all build artifacts instead of building.
+ *
+ * Eventually, this will be migrated to gymboard-cli.
  */
 module build_apps;
 
@@ -20,7 +22,8 @@ enum BUILDS_DIR = "build";
 
 int main(string[] args) {
     if (args.length > 1 && args[1] == "clean") {
-        rmdirRecurse(BUILDS_DIR);
+        writeln("Cleaning builds");
+        if (exists(BUILDS_DIR)) rmdirRecurse(BUILDS_DIR);
         return 0;
     }
     Thread[] buildThreads = [
@@ -91,8 +94,10 @@ int runBuild(const BuildSpec spec) {
     string buildDir = buildPath(BUILDS_DIR, spec.name);
     if (exists(buildDir)) rmdirRecurse(buildDir);
     mkdirRecurse(buildDir);
-    File buildLogFile = File(buildPath(buildDir, "build.log"), "w");
-    File buildErrorLogFile = File(buildPath(buildDir, "build-error.log"), "w");
+    const logFilePath = buildPath(buildDir, "build.log");
+    const errorLogFilePath = buildPath(buildDir, "build-error.log");
+    File buildLogFile = File(logFilePath, "w");
+    File buildErrorLogFile = File(errorLogFilePath, "w");
     Pid pid = spawnShell(
         spec.buildCommand,
         std.stdio.stdin,
@@ -104,7 +109,14 @@ int runBuild(const BuildSpec spec) {
         nativeShell()
     );
     int result = wait(pid);
-    if (result != 0) return result;
+    if (result != 0) {
+        writefln!"Build command failed for build \"%s\". Check %s for more info."(spec.name, errorLogFilePath);
+        return result;
+    }
+
+    // Clean up unused log files.
+    if (getSize(logFilePath) == 0) std.file.remove(logFilePath);
+    if (getSize(errorLogFilePath) == 0) std.file.remove(errorLogFilePath);
 
     // Find and extract artifacts.
     bool artifactFound = false;