diff --git a/.mrconfig b/.mrconfig
deleted file mode 100644
index ea0ef2d455..0000000000
--- a/.mrconfig
+++ /dev/null
@@ -1,115 +0,0 @@
-# Installing EGroupware dependencies
-# - install myrepo utility (https://myrepos.branchable.com/)
-# - to install or update run inside EGroupware dir: mr up
-# - alternativly you can also run the commands manually
-
-[DEFAULT]
-git_update = git stash -q || true ; git pull --rebase ; git stash pop -q 2>/dev/null || true
-# run 5 jobs parallel, does NOT work with more then one svn module for (un)tag!
-jobs = 5
-git_tag = git tag -a $1 -m "$2"
-git_untag = git tag -d $1
-git_branch = git checkout -b $1
-svn_tag = svn cp --parents -m "$2" $(svn info|grep ^URL|cut -f 2 -d ' ') $(svn info|grep ^URL|cut -f 2 -d ' '|sed -E "s:/(branches/[0-9.]+|trunk)/:/tags/$1/:")
-svn_untag = svn rm -m "remove tag" $(svn info|grep ^URL|cut -f 2 -d ' '|sed -E "s:/(branches/[0-9.]+|trunk)/.*$:/tags/$1/:")
-svn_branch = svn cp --parents -m "$2" $(svn info|grep ^URL|cut -f 2 -d ' ') $(svn info|grep ^URL|cut -f 2 -d ' '|sed -E "s:/(branches/[0-9.]+|trunk)/:/branches/$1/:"); svn switch ^/branches/$1/$(svn info|grep ^URL|cut -f 2 -d ' '|sed 's/^.*\///') .
-
-[api/src/Db/ADOdb]
-checkout = git clone ${EGW_REPO_BASE:-$(git config --get remote.origin.url|sed 's|/egroupware.git||')}/ADOdb.git
-
-[]
-# to run composer.phar automatic, this .mrconfig need to be trusted by adding it to ~/.mrtrust
-checkout = git clone git@github.com:EGroupware/egroupware.git &&
-	/usr/bin/env $(which composer.phar >/dev/null && echo composer.phar || echo composer) install
-update = git stash -q || true ; git pull --rebase ; git stash pop -q 2>/dev/null || true;
-	rm -rf api/js/ckeditor;
-	/usr/bin/env $(which composer.phar >/dev/null && echo composer.phar || echo composer) install
-# uncomment for minified javascript and css, IF you have nodejs and grunt installed: npm install -g grunt-cli
-#post_checkout = /usr/bin/env npm install && /usr/bin/env grunt
-#post_update = /usr/bin/env npm install && /usr/bin/env grunt
-# to run after all other checkout/updates, as some apps (eg. projectmanager) need to update first
-order = 20
-
-###
-### Optional apps you can enable by uncommenting them and (re-)run: mr up
-###
-[activesync]
-# synchronise mobile phone via Z-Push and ActiveSync protocoll
-checkout = git clone ${EGW_REPO_BASE:-$(git config --get remote.origin.url|sed 's|/egroupware.git||')}/activesync.git
-chain = true
-
-[tracker]
-# tracking or helpdesk application
-checkout = git clone ${EGW_REPO_BASE:-$(git config --get remote.origin.url|sed 's|/egroupware.git||')}/tracker.git
-
-[projectmanager]
-# projectmanagement and Ganttcharts
-checkout = git clone ${EGW_REPO_BASE:-$(git config --get remote.origin.url|sed 's|/egroupware.git||')}/projectmanager.git
-
-[collabora]
-# Collabora Libre Office Online integration
-checkout = git clone ${EGW_REPO_BASE:-$(git config --get remote.origin.url|sed 's|/egroupware.git||')}/collabora.git
-
-#[bookmarks]
-# record and share bookmarks
-#checkout = git clone ${EGW_REPO_BASE:-$(git config --get remote.origin.url|sed 's|/egroupware.git||')}/bookmarks.git
-
-#[news_admin]
-# publish and agregate RSS or ATOM feeds
-#checkout = git clone ${EGW_REPO_BASE:-$(git config --get remote.origin.url|sed 's|/egroupware.git||')}/news_admin.git
-
-#[registration]
-# allows (after configuration!) to selfregister accounts and recover lost passwords
-#checkout = git clone ${EGW_REPO_BASE:-$(git config --get remote.origin.url|sed 's|/egroupware.git||')}/registration.git
-
-#[archive]
-# allows to integrate a Benno mail-archive into EGroupware
-#checkout = git clone ${EGW_REPO_BASE:-$(git config --get remote.origin.url|sed 's|/egroupware.git||')}/archive.git
-
-#[wiki]
-# wiki application
-#checkout = git clone ${EGW_REPO_BASE:-$(git config --get remote.origin.url|sed 's|/egroupware.git||')}/wiki.git
-
-###
-### Older apps requiring to install phpgwapi and etemplate!
-###
-#[phpgwapi]
-# old api used by non 16.1 apps
-#checkout = git clone ${EGW_REPO_BASE:-$(git config --get remote.origin.url|sed 's|/egroupware.git||')}/phpgwapi.git
-
-#[jdots]
-# alternative "Stylite" template set
-#checkout = git clone ${EGW_REPO_BASE:-$(git config --get remote.origin.url|sed 's|/egroupware.git||')}/jdots.git
-
-#[etemplate]
-# old templating system superseeded by eTemplate2 in 16.1+ api
-#checkout = git clone ${EGW_REPO_BASE:-$(git config --get remote.origin.url|sed 's|/egroupware.git||')}/etemplate.git
-
-#[phpbrain]
-# knowledge base
-#checkout = git clone ${EGW_REPO_BASE:-$(git config --get remote.origin.url|sed 's|/egroupware.git||')}/phpbrain.git
-
-#[sambaadmin]
-# keeps passwords in sync with Samba3 using same LDAP as EGroupware (for Samba4 use Active Directory)
-#checkout = git clone ${EGW_REPO_BASE:-$(git config --get remote.origin.url|sed 's|/egroupware.git||')}/sambaadmin.git
-
-#[sitemgr]
-# content managment application
-#checkout = git clone ${EGW_REPO_BASE:-$(git config --get remote.origin.url|sed 's|/egroupware.git||')}/sitemgr.git
-
-#[phpfreechat]
-# chat application requiring PHP 5.x, no PHP 7.x support!
-#checkout = git clone ${EGW_REPO_BASE:-$(git config --get remote.origin.url|sed 's|/egroupware.git||')}/phpfreechat.git
-#chain = true
-
-###
-### EPL apps not publicly available
-###
-
-#[stylite]
-#checkout = git clone git@github.com:EGroupwareGmbH/epl.git stylite
-#update = test -d .svn && { rm -rf * .svn; git clone git@github.com:EGroupwareGmbH/epl.git .; } || git pull --rebase
-
-#[esyncpro]
-#checkout = git clone git@github.com:EGroupwareGmbH/esyncpro.git
-#update = test -d .svn && { rm -rf * .svn; git clone git@github.com:EGroupwareGmbH/esyncpro.git .; } || git pull --rebase
diff --git a/install-cli.php b/install-cli.php
new file mode 100755
index 0000000000..82481c8219
--- /dev/null
+++ b/install-cli.php
@@ -0,0 +1,420 @@
+#!/usr/bin/env php
+<?php
+/**
+ * Install / update EGroupware - Command line interface
+ *
+ * Usage:
+ *
+ * - install-cli.php [-v|--verbose] [--use-prerelease] [<composer-args>] [(master|bugfix|release|<branch>|<tag>)]
+ *   you can use composer install arguments like: --ignore-platform-reqs --no-dev
+ *
+ * - install-cli.php --git(-apps) <arguments>
+ *   runs git with given arguments (in main- and) all app-dirs, e.g. tag -a 17.1.20190214 -m 'tagging release'
+ *
+ * EGroupware main directory should be either git cloned:
+ *
+ *	git clone [-b <branch>] https://github.com/EGroupware/egroupware [<target>]
+ *
+ * or created via composer create-project
+ *
+ *	composer create-project --prefer-source --keep-vcs egroupware/egroupware[:(dev-master|17.1.x-dev|<tag>)] <target>
+ *
+ * Both will create a git clone, which can be further updated by calling this tool without argument.
+ *
+ * We currently use 3 "channels":
+ * - release: taged maintenance releases only eg. 17.1.20190214
+ * - bugfix:  release-branch incl. latest bugfixes eg. 17.1 or 17.1.x-dev for composer
+ * - master:  latest development for next release
+ * To change the channel, call install-cli.php <channel-to-update-to>.
+ *
+ * This tool requires the following binaries installed at the usually places or in your path:
+ * - php & git: apt/yum/zypper install php-cli git
+ * - composer: see https://getcomposer.org/download/ for installation instructions
+ * The following binaries are needed to minify JavaScript and CSS
+ * - npm: apt/yum/zypper install npm
+ * - grunt: npm install -g grunt-cli
+ *
+ * @link http://www.egroupware.org
+ * @package api
+ * @author Ralf Becker <rb@egroupware.org>
+ * @copyright (c) 2019 by Ralf Becker <rb@egroupware.org>
+ * @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
+ */
+
+chdir(__DIR__);	// to enable relative pathes to work
+
+if (php_sapi_name() !== 'cli')	// security precaution: forbit calling setup-cli as web-page
+{
+	die('<h1>install-cli.php must NOT be called as web-page --> exiting !!!</h1>');
+}
+error_reporting(E_ALL & ~E_NOTICE & ~E_STRICT);
+
+// parse arguments
+$verbose = $use_prerelease = $run_git = false;
+$composer_args = [];
+
+$argv = $_SERVER['argv'];
+$cmd  = array_shift($argv);
+
+foreach($argv as $n => $arg)
+{
+	if ($arg[0] === '-')
+	{
+		switch($arg)
+		{
+			case '-v':
+			case '--verbose':
+				$verbose = true;
+				unset($argv[$n]);
+				break;
+
+			case '--use-prerelease':
+				$use_prerelease = true;
+				unset($argv[$n]);
+				break;
+
+			case '-h':
+			case '--help':
+				usage();
+
+			case '--git':
+			case '--git-apps':
+				$run_git = $arg;
+				unset($argv[$n]);
+				break 2;	// no further argument processing, as they are for git
+
+			default:	// pass unknown arguments to composer install
+				$composer_args[] = $arg;
+				unset($argv[$n]);
+				break;
+		}
+	}
+}
+
+if (!$run_git && count($argv) > 1) usage("Too many arguments!");
+
+function usage($err=null)
+{
+	global $cmd;
+
+	if ($err)
+	{
+		echo "$err\n\n";
+	}
+	die("Usage:\t$cmd [-v|--verbose] [--use-prerelease] [<composer-args>] (master|bugfix|release|<branch>|<tag>)\n".
+		"\t\nyou can use composer install arguments like: --ignore-platform-reqs --no-dev\n".
+		"\t$cmd --git(-apps) <arguments>\n".
+		"\truns git with given arguments (in main- and) all app-dirs, e.g. tag -a 17.1.20190214 -m 'tagging release'\n\n");
+}
+
+$bins = array(
+	'php'      => PHP_BINARY,
+	'git'      => '/usr/bin/git',
+	'composer' => ['/usr/bin/composer', '/usr/bin/composer.phar'],
+	// npm and grunt are no hard requirement and should be the last in the list!
+	'npm'      => '/usr/bin/npm',
+	'grunt'    => '/usr/bin/grunt',
+);
+
+// check if the necessary binaries are installed
+foreach($bins as $name => $binaries)
+{
+	foreach((array)$binaries as $bin)
+	{
+		if (file_exists($bin) && is_executable($bin))
+		{
+			$bins[$name] = $$name = $bin;
+			continue 2;
+		}
+	}
+	$output = $ret = null;
+	if (($bin = exec('which '.$name, $output, $ret)) && !$ret &&
+		(file_exists($bin)) && is_executable($bin))
+	{
+		$bins[$name] = $$name = $bin;
+	}
+	// check if we can just run it, because it's in the path
+	elseif (exec($name.' -v', $output, $ret) && !$ret)
+	{
+		$bins[$name] = $$name = $num;
+	}
+	else
+	{
+		$bins[$name] = $$name = false;
+		error_log("Could not find $name command!");
+		if (!in_array($name, ['npm','grunt']))
+		{
+			exit(1);
+		}
+		else
+		{
+			error_log("npm and grunt are required to minify JavaScript and CSS files to improve performance.");
+			break;
+		}
+	}
+}
+
+if ($verbose) echo "Using following binaries: ".json_encode ($bins, JSON_UNESCAPED_SLASHES)."\n";
+
+if (!extension_loaded('curl')) die("Required PHP extesion 'curl' missing! You need to install php-curl package.\n\n");
+
+// check if we are on a git clone
+$output = array();
+if (!file_exists(__DIR__.'/.git') || !is_dir(__DIR__.'/.git'))
+{
+	error_log("Could not identify git branch (you need to use git clone or composer create-project --prefer-source --keep-vcs egroupware/egroupware)!");
+	exit(1);
+}
+
+// should we only run a git command
+if ($run_git)
+{
+	exit (run_git($argv, $run_git === '--git'));
+}
+
+if (!exec($git.' branch --no-color', $output, $ret) || $ret)
+{
+	foreach($output as $line)
+	{
+		error_log($line);
+	}
+	exit($ret);
+}
+foreach($output as $line)
+{
+	if ($line[0] == '*')
+	{
+		$branch = substr($line, 2);
+		// are we on a tag
+		if (preg_match('/^\(HEAD .* ([0-9.]+)\)$/', $branch, $matches))
+		{
+			$branch = $matches[1];
+		}
+		break;
+	}
+}
+$channel = 'development';
+if (preg_match('/^\d+\.\d+(\.\d{8})?/', $branch, $machtes))
+{
+	$channel = isset($matches[1]) ? 'release' : 'bugfix';
+}
+if ($verbose) echo "Currently using branch: $branch --> $channel channel\n";
+
+if ($argv)
+{
+	$target = array_shift($argv);
+
+	if ($target === 'release')
+	{
+		$target = get_latest_release($use_prerelease);
+	}
+	elseif ($target === 'bugfix')
+	{
+		$target = (string)(float)get_latest_release($use_prerelease);
+	}
+}
+else
+{
+	$target = $branch;
+
+	// find latest release
+	if ($channel == 'release')
+	{
+		$target = get_latest_release($use_prerelease);
+	}
+}
+
+echo "Updating to: $target\n";
+
+// Update EGroupware itself and further apps installed via git
+$failed = array();
+$succieded = 0;
+foreach(scandir(__DIR__) as $dir)
+{
+	if ($dir !== '..' && file_exists(__DIR__.'/'.$dir.'/.git') &&
+		// these apps / dirs are managed by composer, no need to run manual updates
+		!in_array($dir, ['vendor', 'activesync', 'collabora', 'projectmanager', 'tracker']))
+	{
+		$cmd = "cd $dir ; $git stash -q ; ";
+		// switch message about detached head off for release-channel/tags
+		if (preg_match('/^\d+\.\d+\.\d{8}/', $target))
+		{
+			$cmd .= "$git config advice.detachedHead false ; ";
+		}
+		if ($branch != $target)
+		{
+			$cmd .= "$git checkout $target && ";
+		}
+		// no need to pull for release-channel/tags
+		if (!preg_match('/^\d+\.\d+\.\d{8}/', $target))
+		{
+			$cmd .= "$git pull --rebase && ";
+		}
+		$cmd .= "(test -z \"$($git stash list)\" || $git stash pop)";
+		if ($verbose)
+		{
+			echo "$cmd\n";
+		}
+		elseif ($dir !== '.')
+		{
+			echo $dir.': ';
+		}
+		run_cmd($cmd, $dir === '.' ? 'egroupware' : $dir);
+	}
+}
+
+// update composer managed dependencies
+$cmd = $composer.' install '.implode(' ', $composer_args);
+run_cmd($cmd, 'composer');
+
+// update npm dependencies and run grunt to minify javascript and css
+if ($npm && $grunt)
+{
+	run_cmd($npm.' install', 'npm');
+
+	run_cmd($grunt, 'grunt');
+}
+
+echo "\n$succieded tasks successful run".
+	($failed ? ', '.count($failed).' failed: '.implode(', ', $failed) : '')."\n\n";
+exit(count($failed));
+
+/**
+ * Run a command and collect number of succieded or failed command
+ *
+ * @param string $cmd comamnd to run
+ * @param string $name task name to report on failure
+ * @return int exit code of command
+ */
+function run_cmd($cmd, $name)
+{
+	global $verbose, $failed, $succieded;
+
+	if ($verbose) echo "$cmd\n";
+	$ret = null;
+	system($cmd, $ret);
+	if ($ret == 0)
+	{
+		$succieded++;
+	}
+	else
+	{
+		$failed[] = $name;
+	}
+	return $ret;
+}
+
+/**
+ * Run git command with given arguments all app-dirs and (optional) install-dir
+ *
+ * cd and git command is echoed to stderr
+ *
+ * @param array $argv
+ * @param booelan $main_too =true true: run in main-dir too, false: only app-dirs
+ * @return int exit-code of last git command, breaks on first non-zero exit-code
+ */
+function run_git(array $argv, $main_too=true)
+{
+	global $git;
+
+	$git_cmd = $git.' '.implode(' ', array_map('escapeshellarg', $argv));
+
+	$ret = 0;
+	foreach(scandir(__DIR__) as $dir)
+	{
+		if (!($dir === '..' || $dir === '.' && !$main_too ||
+			!file_exists(__DIR__.'/'.$dir.'/.git')))
+		{
+			$cmd = ($dir !== '.' ? "cd $dir; " : '').$git_cmd;
+
+			error_log("\n>>> ".$cmd."\n");
+			system($cmd, $ret);
+			// break if command is not successful
+			if ($ret) return $ret;
+		}
+	}
+	return $ret;
+}
+
+/**
+ * Get latest release
+ *
+ * @param boolean $prerelease =false include releases taged as prerelease
+ * @param boolean $return_name =true true: just return name, false: full release object
+ * @return array|string|null null if no release found
+ */
+function get_latest_release($prerelease=false, $return_name=true)
+{
+	foreach(github_api('/repos/egroupware/egroupware/releases', [], 'GET') as $release)
+	{
+		if ($prerelease || $release['prerelease'] === false)
+		{
+			return $return_name ? $release['tag_name'] : $release;
+		}
+	}
+	return null;
+}
+
+/**
+ * Sending a Github API request
+ *
+ * @param string $_url url of just path where to send request to (https://api.github.com is added automatic)
+ * @param string|array $data payload, array get automatic added as get-parameter or json_encoded for POST
+ * @param string $method ='POST'
+ * @param string $upload =null path of file to upload, payload for request with $method='FILE'
+ * @param string $content_type =null
+ * @throws Exception
+ * @return array with response
+ */
+function github_api($_url, $data, $method='POST', $upload=null, $content_type=null)
+{
+	global /*$config,*/ $verbose;
+
+	$url = $_url[0] == '/' ? 'https://api.github.com'.$_url : $_url;
+	$c = curl_init();
+	curl_setopt($c, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
+	//curl_setopt($c, CURLOPT_USERPWD, $config['github_user'].':'.$config['github_token']);
+	curl_setopt($c, CURLOPT_RETURNTRANSFER, true);
+	curl_setopt($c, CURLOPT_USERAGENT, basename(__FILE__));
+	curl_setopt($c, CURLOPT_TIMEOUT, 240);
+	curl_setopt($c, CURLOPT_FOLLOWLOCATION, true);
+
+	switch($method)
+	{
+		case 'POST':
+			curl_setopt($c, CURLOPT_POST, true);
+			if (is_array($data)) $data = json_encode($data, JSON_FORCE_OBJECT);
+			curl_setopt($c, CURLOPT_POSTFIELDS, $data);
+			break;
+		case 'GET':
+			if(count($data)) $url .= '?' . http_build_query($data);
+			break;
+		case 'FILE':
+			curl_setopt($c, CURLOPT_HTTPHEADER, array("Content-type: $content_type"));
+			curl_setopt($c, CURLOPT_POST, true);
+			curl_setopt($c, CURLOPT_POSTFIELDS, file_get_contents($upload));
+			if(count($data)) $url .= '?' . http_build_query($data);
+			break;
+		default:
+			throw new Exception(__FUNCTION__.": Unknown/unimplemented method=$method!");
+	}
+	curl_setopt($c, CURLOPT_URL, $url);
+
+	if (is_string($data)) $short_data = strlen($data) > 100 ? substr($data, 0, 100).' ...' : $data;
+	if ($verbose) echo "Sending $method request to $url ".(isset($short_data)&&$method!='GET'?$short_data:'')."\n";
+
+	if (($response = curl_exec($c)) === false)
+	{
+		// run failed request again to display response including headers
+		curl_setopt($c, CURLOPT_HEADER, true);
+		curl_setopt($c, CURLOPT_RETURNTRANSFER, false);
+		curl_exec($c);
+		throw new Exception("$method request to $url failed ".(isset($short_data)&&$method!='GET'?$short_data:''));
+	}
+
+	if ($verbose) echo (strlen($response) > 200 ? substr($response, 0, 200).' ...' : $response)."\n";
+
+	curl_close($c);
+
+	return json_decode($response, true);
+}