diff --git a/.gitignore b/.gitignore
index d7fe8e6..2ee3a32 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,10 +1,5 @@
-buck-out/
-bucklets
 eclipse-out
 target/
-.buckd/
-.buckversion
 .classpath
 .project
 .settings/
-.watchmanconfig
diff --git a/BUCK b/BUCK
deleted file mode 100644
index 8865738..0000000
--- a/BUCK
+++ /dev/null
@@ -1,40 +0,0 @@
-include_defs('//bucklets/gerrit_plugin.bucklet')
-include_defs('//bucklets/java_sources.bucklet')
-
-SOURCES = glob(['src/main/java/**/*.java'])
-RESOURCES = glob(['src/main/resources/**/*'])
-
-DEPS = GERRIT_PLUGIN_API + [
-  ':websession-flatfile__plugin',
-]
-
-gerrit_plugin(
-  name = 'websession-flatfile',
-  srcs = SOURCES,
-  resources = RESOURCES,
-  manifest_entries = [
-    'Gerrit-PluginName: websession-flatfile',
-    'Gerrit-Module: com.googlesource.gerrit.plugins.websession.flatfile.Module',
-    'Gerrit-HttpModule: com.googlesource.gerrit.plugins.websession.flatfile.FlatFileWebSession$Module',
-    'Implementation-Title: Flat file WebSession',
-    'Implementation-URL: https://gerrit-review.googlesource.com/#/admin/projects/plugins/websession-flatfile',
-  ],
-)
-
-java_library(
-  name = 'classpath',
-  deps = DEPS + GERRIT_TESTS,
-)
-
-java_sources(
-  name = 'websession-flatfile-sources',
-  srcs = SOURCES + RESOURCES,
-)
-
-java_test(
-  name = 'websession-flatfile_tests',
-  srcs = glob(['src/test/java/**/*.java']),
-  resources = glob(['src/test/resources/**/']),
-  labels = ['websession-flatfile'],
-  deps = GERRIT_TESTS + DEPS,
-)
diff --git a/lib/gerrit/BUCK b/lib/gerrit/BUCK
deleted file mode 100644
index 9a18ddd..0000000
--- a/lib/gerrit/BUCK
+++ /dev/null
@@ -1,22 +0,0 @@
-include_defs('//bucklets/maven_jar.bucklet')
-
-VER = '2.13'
-REPO = MAVEN_CENTRAL
-
-maven_jar(
-  name = 'plugin-api',
-  id = 'com.google.gerrit:gerrit-plugin-api:' + VER,
-  sha1 = 'e25d55b8f41627c4ae6b9d2069ec398638b219a3',
-  attach_source = False,
-  repository = REPO,
-  license = 'Apache2.0',
-)
-
-maven_jar(
-  name = 'acceptance-framework',
-  id = 'com.google.gerrit:gerrit-acceptance-framework:' + VER,
-  sha1 = 'a6913a61196a8fccdb45e761f43a0b7e21867c90',
-  license = 'Apache2.0',
-  attach_source = False,
-  repository = REPO,
-)