diff --git a/.editorconfig b/.editorconfig
index 624ad9b..f9b3c4d 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -26,3 +26,4 @@
 [*.{yaml,yml}]
 indent_style = space
 indent_size = 2
+trim_trailing_whitespace = true
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d3110a4..7029313 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,6 +1,13 @@
 name: CI
 on:
   push:
+    paths-ignore:
+      - 'Dockerfile'
+      - '.dockerignore'
+      - '.editorconfig'
+      - '.gitignore'
+      - '.mailmap'
+      - '*.md'
   workflow_dispatch:
 
 permissions: {}
diff --git a/.gitignore b/.gitignore
index c3c9cd0..dc40a00 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,22 +1,8 @@
-# Emacs
+# Backup files
 *~
-\#*\#
-/.emacs.desktop
-/.emacs.desktop.lock
-*.elc
-.\#*
-
-# Visual Studio Code
-.vscode/
-
-# Clion
-.idea
-
-# macOS
-.DS_Store
-.AppleDouble
-.LSOverride
-._*
+*.bak
+*.orig
+*.rej
 
 # Waf build system
 /build/
@@ -28,5 +14,21 @@
 __pycache__/
 *.py[cod]
 
+# Emacs
+\#*\#
+/.emacs.desktop
+/.emacs.desktop.lock
+*.elc
+.\#*
+
+# Visual Studio Code
+.vscode/
+
+# macOS
+.DS_Store
+.AppleDouble
+.LSOverride
+._*
+
 # Other
 /VERSION.info
diff --git a/.jenkins.d/00-deps.sh b/.jenkins.d/00-deps.sh
index 1a4bfc1..c278382 100755
--- a/.jenkins.d/00-deps.sh
+++ b/.jenkins.d/00-deps.sh
@@ -2,7 +2,8 @@
 set -eo pipefail
 
 APT_PKGS=(
-    build-essential
+    dpkg-dev
+    g++
     libboost-chrono-dev
     libboost-date-time-dev
     libboost-dev
@@ -15,7 +16,7 @@
     libsqlite3-dev
     libssl-dev
     pkg-config
-    python3-minimal
+    python3
 )
 FORMULAE=(boost openssl pkg-config)
 PIP_PKGS=()
diff --git a/README.md b/README.md
index f08b6f0..8e5a5ed 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 # NDNCERT: NDN Certificate Management Protocol
 
-[![CI](https://github.com/named-data/ndncert/actions/workflows/ci.yml/badge.svg)](https://github.com/named-data/ndncert/actions/workflows/ci.yml)
 ![Language](https://img.shields.io/badge/C%2B%2B-17-blue)
+[![CI](https://github.com/named-data/ndncert/actions/workflows/ci.yml/badge.svg)](https://github.com/named-data/ndncert/actions/workflows/ci.yml)
 
 The NDN certificate management protocol (**NDNCERT**) enables automatic certificate management
 in NDN. In Named Data Networking (NDN), every entity should have a corresponding identity