diff --git a/build.sh b/build.sh
index 2620a2f..75dc2c1 100755
--- a/build.sh
+++ b/build.sh
@@ -1,4 +1,4 @@
 cd tomlc99
 make
 cd ..
-cc tomlc99/toml.o main.c -o tbuild
+cc tomlc99/toml.o main.c -o tbuild -O0 -ggdb
diff --git a/main.c b/main.c
index 62ef7cc..58479c4 100644
--- a/main.c
+++ b/main.c
@@ -201,19 +201,33 @@ char* find_project_root(void)
   "\n" \
   "[Dependencies]\n"
 
+typedef struct {
+  char *name, *uri;
+} dependency;
+
+#define MAX_DEP 20
 typedef struct project_manifest {
   char *name, *author, *version;
-  // FIXME: Add dependencies.
+  dependency dependencies[MAX_DEP];
+  size_t dependencies_amount;
 } project_manifest;
 
 void free_manifest(project_manifest *manifest) {
+  int i;
+
   free(manifest->name);
   free(manifest->author);
   free(manifest->version);
+
+  for (i = 0; i < manifest->dependencies_amount; i++) {
+    free(manifest->dependencies[i].name);
+    free(manifest->dependencies[i].uri);
+  }
 }
 
 project_manifest* load_manifest(char const *path) {
   FILE* fp;
+  int i;
   char errbuf[200];
 
   fp = fopen(path, "r");
@@ -259,12 +273,34 @@ project_manifest* load_manifest(char const *path) {
   new->author = author.u.s;
   new->version = version.u.s;
 
+  new->dependencies_amount = 0;
+
   // FIXME: Add dependencies.
+  toml_table_t *dependencies = toml_table_in(conf, "Dependencies");
+  if (!dependencies) {
+    fprintf(stderr, "Error: Cannot load manifest file: Cannot find [Dependencies] table.\n");
+    return NULL;
+  }
+
+  for (i = 0; ; i++) {
+    char const *key = toml_key_in(dependencies, i);
+    if (!key) break;
+
+    toml_datum_t dep_uri = toml_string_in(dependencies, key);
+    new->dependencies_amount++;
+    char *name = calloc(1, sizeof(char) * (strlen(key) + 1));
+    strcpy(name, key);
+    char *url = calloc(1, sizeof(char) * (strlen(dep_uri.u.s) + 1));
+    strcpy(url, dep_uri.u.s);
+
+    dependency dep = {
+      name, url
+    };
+
+    new->dependencies[i] = dep;
+  }
 
   toml_free(conf);
-
-  printf("%s, %s, %s\n", new->name, new->author, new->version);
-
   return new;
 }
 
@@ -341,7 +377,7 @@ void print_help(char **argv) {
   printf("Usage: %s [command]\n", argv[0]);
   fputs("\nCommands:\n", stderr);
   fputs(" * init|i [path=.] - Setup a new project.\n", stderr);
-  fputs(" * build|. - Build project in current working directory.\n", stderr);
+  fputs(" * build|. [--zeal|-z|-Z] - Build project in current working directory.\n", stderr);
   fputs(" * clean - Clean output code in current working directory.\n", stderr);
   fputs("\nTo see manifest file usage, check out man tbuild(1)\n", stderr);
 }
@@ -642,6 +678,8 @@ int main(int argc, char **argv) {
     if (argc > 2)
       free(project_path);
   } else if (cmd == 'b' || cmd == '.') {
+    int i;
+
     struct {
       bool zeal_build;
     } options = { 0 };
@@ -681,9 +719,35 @@ int main(int argc, char **argv) {
     }
 
     project_manifest* manifest = load_manifest(text_format("%s/" MANIFEST_FNAME, project_path));
+    if (!manifest) {
+      fputs("Error: Cannot build project: Failed to open manifest.\n", stderr);
+      return 1;
+    }
     puts(buffer_text_format);
 
-    // TODO: Validate dependencies.
+    text_format("%s/lib", project_path);
+    char *lib_dir = malloc((strlen(buffer_text_format)+1)*sizeof(char));
+    strcpy(lib_dir, buffer_text_format);
+    if (!file_exists(lib_dir)) {
+      bool status = makedir(lib_dir);
+      if (!status) {
+        fputs("Error: Cannot build project: Cannot create lib directory.\n", stderr);
+        free_manifest(manifest);
+        return 1;
+      }
+    }
+
+    for (i = 0; i < manifest->dependencies_amount; i++) {
+      dependency dep = manifest->dependencies[i];
+      printf("%s -> %s (%i)\n", dep.name, dep.uri, i);
+
+      puts(text_format("%s/%s", lib_dir, dep.name));
+      if (!file_exists(text_format("%s/%s", lib_dir, dep.name)))
+        system(text_format("git clone --depth 1 --recursive --shallow-submodules '%s' '%s/%s'", dep.uri, lib_dir, dep.name));
+      else
+        // FIXME: Make this cross platform.
+        system(text_format("cd '%s/%s' && git pull", lib_dir, dep.name));
+    }
 
     // Create build directory
     text_format("%s/build", project_path);
@@ -705,8 +769,8 @@ int main(int argc, char **argv) {
     puts("Populating build directory...");
     clear_directory(build_dir);
     copy_directory(src_dir, build_dir);
-    if (file_exists(text_format("%s/libs", project_path)))
-      copy_directory(src_dir, buffer_text_format);
+    if (file_exists(lib_dir))
+      copy_directory(lib_dir, build_dir);
 
     // Run scripts (if any)
     puts("Running scripts...");