diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 # NetNewsWire
 
+[![CircleCI](https://circleci.com/gh/brentsimmons/NetNewsWire.svg?style=svg)](https://circleci.com/gh/brentsimmons/NetNewsWire)
+
 It’s a free and open source feed reader for macOS.
 
 It’s not in beta just yet. Getting close! While NetNewsWire 5.0 is feature-complete as of May 25, 2019, it has known bugs — and, surely, plenty of unknown bugs.
diff --git a/Technotes/ContinuousIntegration.md b/Technotes/ContinuousIntegration.md
new file mode 100644
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+# NetNewsWire Continuous Integration
+
+CI for NetNewsWire is enabled through CircleCI, hosted at
+<https://circleci.com/gh/brentsimmons/NetNewsWire>. The CI configuration (hosted in
+[`.circleci/config.yml`](https://github.com/brentsimmons/NetNewsWire/blob/master/.circleci/config.yml)
+uses `xcodebuild` to build the project after syncing the repository and
+the various submodules.
+
+As of June 2019, CircleCI offered Xcode 10.2.1, so IOS 13 and Catalina support are not available
+via CI as yet.
+
+The build itself focuses on the scheme NetNewsWire and leverages the
+`NetNewsWire.xcworkspace` configuration.
+
+Each submodule also has it's own CI configuration, which are set up and built from
+their own repositories. The submodule CI systems are entirely independent so that
+those libraries can grow and change, getting CI verification, indepdent of NetNewsWire.
+
+The submodule CI are typically set to run a build and any available tests. Refer to the
+project repository for the current and complete list of submodules, but for quick reference:
+
+- [RSCore](https://github.com/brentsimmons/RSCore)
+
+[![CircleCI](https://circleci.com/gh/brentsimmons/RSCore.svg?style=svg)](https://circleci.com/gh/brentsimmons/RSCore)
+
+- [RSCore](https://github.com/brentsimmons/RSWeb)
+
+[![CircleCI](https://circleci.com/gh/brentsimmons/RSWeb.svg?style=svg)](https://circleci.com/gh/brentsimmons/RSWeb)
+
+- [RSCore](https://github.com/brentsimmons/RSParser)
+
+[![CircleCI](https://circleci.com/gh/brentsimmons/RSParser.svg?style=svg)](https://circleci.com/gh/brentsimmons/RSParser)
+
+- [RSCore](https://github.com/brentsimmons/RSTree)
+
+[![CircleCI](https://circleci.com/gh/brentsimmons/RSTree.svg?style=svg)](https://circleci.com/gh/brentsimmons/RSTree)
+
+- [RSCore](https://github.com/brentsimmons/RSDatabase)
+
+[![CircleCI](https://circleci.com/gh/brentsimmons/RSDatabase.svg?style=svg)](https://circleci.com/gh/brentsimmons/RSDatabase)