diff --git a/lectures/.classpath b/lectures/.classpath
new file mode 100644
index 0000000000000000000000000000000000000000..10d994043387f57590a3a567df89e601500658ba
--- /dev/null
+++ b/lectures/.classpath
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" output="bin/main" path="src/main/java">
+		<attributes>
+			<attribute name="gradle_scope" value="main"/>
+			<attribute name="gradle_used_by_scope" value="main,test"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="src" output="bin/main" path="src/main/resources">
+		<attributes>
+			<attribute name="gradle_scope" value="main"/>
+			<attribute name="gradle_used_by_scope" value="main,test"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="src" output="bin/test" path="src/test/java">
+		<attributes>
+			<attribute name="gradle_scope" value="test"/>
+			<attribute name="gradle_used_by_scope" value="test"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="src" output="bin/test" path="src/test/resources">
+		<attributes>
+			<attribute name="gradle_scope" value="test"/>
+			<attribute name="gradle_used_by_scope" value="test"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-12/"/>
+	<classpathentry kind="con" path="org.eclipse.buildship.core.gradleclasspathcontainer"/>
+	<classpathentry kind="output" path="bin/default"/>
+</classpath>
diff --git a/lectures/.gitignore b/lectures/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..1b6985c0094c8e3db5f1c6e2c4d66b82f325284f
--- /dev/null
+++ b/lectures/.gitignore
@@ -0,0 +1,5 @@
+# Ignore Gradle project-specific cache directory
+.gradle
+
+# Ignore Gradle build output directory
+build
diff --git a/lectures/.project b/lectures/.project
new file mode 100644
index 0000000000000000000000000000000000000000..f51f407ebf93c20eafc3134487820bc886ab67bf
--- /dev/null
+++ b/lectures/.project
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>lectures</name>
+	<comment>Project lectures created by Buildship.</comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.buildship.core.gradleprojectbuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.buildship.core.gradleprojectnature</nature>
+	</natures>
+</projectDescription>
diff --git a/lectures/.settings/org.eclipse.buildship.core.prefs b/lectures/.settings/org.eclipse.buildship.core.prefs
new file mode 100644
index 0000000000000000000000000000000000000000..e8895216fd3c0c3af4c4522334775f41b7deb42e
--- /dev/null
+++ b/lectures/.settings/org.eclipse.buildship.core.prefs
@@ -0,0 +1,2 @@
+connection.project.dir=
+eclipse.preferences.version=1
diff --git a/lectures/asciidoc/README.adoc b/lectures/asciidoc/README.adoc
new file mode 100644
index 0000000000000000000000000000000000000000..108b80c54252c05a9f668577b13e1a3b5e93d49d
--- /dev/null
+++ b/lectures/asciidoc/README.adoc
@@ -0,0 +1,38 @@
+== Multi-eksempel
+
+Dette eksemplet viser hvordan rigger et multi-prosjekt med gradle,
+med del-prosjekter for
+
+- domenelogikk (core)
+- brukergrensesnitt med JavaFX og FXML (fx)
+- React-basert web-klient (react)
+- web-server med JAX-RS og Jersey (jersey)
+
+=== Bygging med Gradle
+
+https://docs.gradle.org/current/userguide/userguide.html[Gradle] er et såkalt byggesystem, som automatiserer oppgaver knyttet til utvikling og kvalitetssikring av programvare, f.eks.
+kompilering, kjørings av enhetstester og integrasjonstester, konvertering av dokumentasjon til HTML, pakking som kjørbart program, osv.
+Det finnes teknisk sett ikke grenser for hva et byggesystem kan gjøre, generelt handler det om å automatisere bort alt praktisk fikkel,
+som ellers hindrer en å jobbe effektivt.
+
+Det finnes flere byggesystem, de viktigste i Java-verdenen er https://maven.apache.org[Maven] og Gradle, mens Javascript-verdenen har sine, bl.a. https://docs.npmjs.com[npm].
+I dette prosjektet har vi valgt å bruke Gradle, fordi det er enklere å skrive og lese oppsettet og trigge kjøring, mer fleksiblet og
+det vi ønsker å automatisere i akkurat dette prosjektet er innafor det Gradle håndterer godt. For andre Java-prosjekter https://phauer.com/2018/moving-back-from-gradle-to-maven/[kan Maven være et bedre alternativ].
+Siden ett av prosjektet bruker Javascript og npm, så
+bruker vi et eget Gradle-tillegg som bygger bro til npm. 
+
+Gradle er bygget rundt tre sentrale elementer:
+
+- oppgaver (tasks) - det som automatiseres, f.eks. kompilering, kjøring av tester, osv.
+- prosjekter - enhetene som oppgaver utføres innenfor
+- tillegg (plugins) - angir hvilke oppgaver som hører til et visst type prosjekt.
+
+Oppsettet for bygging består bl.a. i å angi hvilke (del)-prosjekter som inngår i hovedprosjektet,
+hvilke avhengigheter det er til eksterne moduler og mellom prosjektene, hvilke tillegg som bør aktiveres for disse prosjektene
+(basert på hva slags type prosjekt det er) og hvordan hver type oppgave skal konfigureres.
+
+NOTE: Det litt spesielle med Gradle er at filene for å sette opp et Gradle-bygg egentlig er https://docs.gradle.org/current/userguide/groovy_build_script_primer.html[kode skrevet i det Java-lignende språket Groovy].
+Koden brukes primært til konfigurasjon, altså bygge opp beskrivelsen av oppgavene,  prosjektene og tilleggene og. API-et er utformet slik at koden skal se deklarativ ut.
+En kan flette inn vanlig kode også, hvis en skjønner litt om hvordan API-et virker. Dette gir enorm fleksibilitet, men kan også gjøre filene vanskelige å forstå.
+
+De to viktigste filene for å sette opp et Gradle-bygg er *settings.gradle* og *build.gradle*.
diff --git a/lectures/build.gradle b/lectures/build.gradle
new file mode 100644
index 0000000000000000000000000000000000000000..a21305d1f2087a1d26a9b00171a82c8f045797b4
--- /dev/null
+++ b/lectures/build.gradle
@@ -0,0 +1,99 @@
+plugins {
+    id 'org.asciidoctor.jvm.convert' version '3.0.0-alpha.3'
+    id 'org.asciidoctor.jvm.revealjs' version '3.0.0-alpha.3'
+}
+
+repositories {
+    jcenter()
+    maven {
+        url "https://plugins.gradle.org/m2/"
+    }
+    maven {
+    	url 'http://rubygems-proxy.torquebox.org/releases'
+    }
+}
+
+dependencies {
+    asciidoctorGems 'rubygems:asciidoctor-revealjs:2.0.0' 
+}
+
+asciidoctor {
+	sourceDir 'asciidoc'
+    sources {
+        include '*.adoc'
+    }
+    outputDir file('build/docs/asciidoc')
+	resources {
+		from('asciidoc') {
+	    	include '**/*.png'
+	 	}
+		into '.'
+	}
+    logDocuments = true
+}
+
+asciidoctorj {
+	modules {
+       // diagram.use() 
+       diagram.version '1.5.16' 
+    }
+    // useIntermediateWorkDir = true
+    attributes toc: 'left',
+    	'source-highlighter': 'highlight.js'
+
+    /*	
+	extensions {
+        block_macro (name: 'tweet') { parent, target, attributes ->
+            String content = """<div class="tweet" data-src="https://twitter.com/${target}/status/${attributes.get('1')}"></div>"""
+            config.remove 'content_model'
+            createBlock(parent, "pass", [content], [:], config)
+        }
+    }
+    */	
+}
+
+asciidoctorRevealJs {
+
+    sourceDir 'revealjs'
+    sources {
+        include '*.adoc'
+    }
+    outputDir file('build/docs/revealjs')
+
+    attributes 'sourceDir': 'revealjs',
+    	'imagesDir': 'revealjs',
+        'icons':'font',
+        'iconfont-name': 'fontawesome-4.5.0'
+
+    revealjsOptions {
+        controls = true
+        slideNumber = true
+        progressBar = true
+        pushToHistory = true
+        overviewMode = true
+        touchMode = true
+        backgroundTransition = 'convex' //none , fade, slide, convex, concave, zoom
+        theme = 'sky' //'black', 'beige' , 'league', 'night', 'serif', 'simple', 'sky', 'solarized'
+    }
+
+	plugins 'rajgoel/chart/Chart.min.js'
+}
+
+revealjs {
+	version '2.0.0' // why not '3.8.0' 
+	templateGitHub {
+   		organisation = 'hakimel'
+    	repository = 'reveal.js'
+    	tag = '3.8.0'
+  	}
+}
+
+revealjsPlugins {
+    github 'rajgoel', {
+        organisation = 'rajgoel'
+        repository = 'reveal.js-plugins'
+        branch = 'master'
+    }
+}
+
+build.dependsOn 'asciidoctorRevealJs'
diff --git a/lectures/gradle/wrapper/gradle-wrapper.jar b/lectures/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000000000000000000000000000000000000..5c2d1cf016b3885f6930543d57b744ea8c220a1a
Binary files /dev/null and b/lectures/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/lectures/gradle/wrapper/gradle-wrapper.properties b/lectures/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000000000000000000000000000000000000..5f1b1201a7353e7a48f40c490e7c799a6318d02e
--- /dev/null
+++ b/lectures/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.4-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/lectures/gradlew b/lectures/gradlew
new file mode 100755
index 0000000000000000000000000000000000000000..b0d6d0ab5deb588123dd658f0b079934ee05a72e
--- /dev/null
+++ b/lectures/gradlew
@@ -0,0 +1,188 @@
+#!/usr/bin/env sh
+
+#
+# Copyright 2015 the original author or authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"
diff --git a/lectures/gradlew.bat b/lectures/gradlew.bat
new file mode 100644
index 0000000000000000000000000000000000000000..15e1ee37a70d7dfdfd8cf727022e117b6f6153a7
--- /dev/null
+++ b/lectures/gradlew.bat
@@ -0,0 +1,100 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      http://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/lectures/revealjs/course-intro.adoc b/lectures/revealjs/course-intro.adoc
new file mode 100644
index 0000000000000000000000000000000000000000..8faea6aa53ec8906dc324e2cf10ad0448ba192ee
--- /dev/null
+++ b/lectures/revealjs/course-intro.adoc
@@ -0,0 +1,9 @@
+== Multi-eksempel
+
+Dette eksemplet viser hvordan rigger et multi-prosjekt med gradle,
+med del-prosjekter for
+
+- domenelogikk (core)
+- brukergrensesnitt med JavaFX og FXML (fx)
+- React-basert web-klient (react)
+- web-server med JAX-RS og Jersey (jersey)
diff --git a/lectures/settings.gradle b/lectures/settings.gradle
new file mode 100644
index 0000000000000000000000000000000000000000..d7332cbd789ce19be20062bf33ea9fd67b6cf64e
--- /dev/null
+++ b/lectures/settings.gradle
@@ -0,0 +1,10 @@
+/*
+ * This file was generated by the Gradle 'init' task.
+ *
+ * The settings file is used to specify which projects to include in your build.
+ *
+ * Detailed information about configuring a multi-project build in Gradle can be found
+ * in the user manual at https://docs.gradle.org/5.4/userguide/multi_project_builds.html
+ */
+
+rootProject.name = 'lectures'