diff --git a/src/build.v b/src/build.v
index d1fb21d..51de64c 100644
--- a/src/build.v
+++ b/src/build.v
@@ -2,7 +2,6 @@ module main
 
 import docker
 import encoding.base64
-import rand
 import time
 import json
 import server
@@ -10,6 +9,7 @@ import env
 import net.http
 
 const container_build_dir = '/build'
+
 const build_image_repo = 'vieter-build'
 
 fn create_build_image() ?string {
@@ -83,13 +83,13 @@ fn build() ? {
 	for repo in repos {
 		// TODO what to do with PKGBUILDs that build multiple packages?
 		commands := [
-			"git clone --single-branch --depth 1 --branch $repo.branch $repo.url repo"
-			'cd repo'
-			"makepkg --nobuild --nodeps"
-			'source PKGBUILD'
+			'git clone --single-branch --depth 1 --branch $repo.branch $repo.url repo',
+			'cd repo',
+			'makepkg --nobuild --nodeps',
+			'source PKGBUILD',
 			// The build container checks whether the package is already present on the server
-			"curl --head --fail $conf.address/\$pkgname-\$pkgver-\$pkgrel-\$(uname -m).pkg.tar.zst && exit 0"
-			'MAKEFLAGS="-j\$(nproc)" makepkg -s --noconfirm --needed && for pkg in \$(ls -1 *.pkg*); do curl -XPOST -T "\$pkg" -H "X-API-KEY: \$API_KEY" $conf.address/publish; done'
+			'curl --head --fail $conf.address/\$pkgname-\$pkgver-\$pkgrel-\$(uname -m).pkg.tar.zst && exit 0',
+			'MAKEFLAGS="-j\$(nproc)" makepkg -s --noconfirm --needed && for pkg in \$(ls -1 *.pkg*); do curl -XPOST -T "\$pkg" -H "X-API-KEY: \$API_KEY" $conf.address/publish; done',
 		]
 
 		// We convert the list of commands into a base64 string, which then gets
diff --git a/src/docker/containers.v b/src/docker/containers.v
index 37ff516..d0f5a4d 100644
--- a/src/docker/containers.v
+++ b/src/docker/containers.v
@@ -20,8 +20,8 @@ pub struct NewContainer {
 	entrypoint []string [json: Entrypoint]
 	cmd        []string [json: Cmd]
 	env        []string [json: Env]
-	work_dir   string   [json:  WorkingDir]
-	user string [json: User]
+	work_dir   string   [json: WorkingDir]
+	user       string   [json: User]
 }
 
 struct CreatedContainer {
diff --git a/src/docker/images.v b/src/docker/images.v
index 51a315d..e94ceca 100644
--- a/src/docker/images.v
+++ b/src/docker/images.v
@@ -14,6 +14,8 @@ pub fn pull_image(image string, tag string) ?http.Response {
 	return request('POST', urllib.parse('/v1.41/images/create?fromImage=$image&tag=$tag') ?)
 }
 
+// create_image_from_container creates a new image from a container with the
+// given repo & tag, given the container's ID.
 pub fn create_image_from_container(id string, repo string, tag string) ?Image {
 	res := request('POST', urllib.parse('/v1.41/commit?container=$id&repo=$repo&tag=$tag') ?) ?
 
@@ -24,6 +26,7 @@ pub fn create_image_from_container(id string, repo string, tag string) ?Image {
 	return json.decode(Image, res.text) or {}
 }
 
+// remove_image removes the image with the given ID.
 pub fn remove_image(id string) ?bool {
 	res := request('DELETE', urllib.parse('/v1.41/images/$id') ?) ?