diff --git a/tech-list/modules/ROOT/pages/index.adoc b/tech-list/modules/ROOT/pages/index.adoc
index fbdb6a3..8a7c007 100644
--- a/tech-list/modules/ROOT/pages/index.adoc
+++ b/tech-list/modules/ROOT/pages/index.adoc
@@ -8,13 +8,13 @@ image::ROOT:swarmlab.png[swarmlab,150,float=right]
 https://www.cloudbees.com/blog/why-dockero[Why Docker^]
 
 == Intro docker
-	https://www.compose-spec.io/[docker-compose^]
-	https://github.com/veggiemonk/awesome-docker[github docker-compose^]
-	https://twitter.com/awesome_docker[github awesome docker]
+https://www.compose-spec.io/[docker-compose^]
+https://github.com/veggiemonk/awesome-docker[github docker-compose^]
+https://twitter.com/awesome_docker[github awesome docker]
 
 === Learn to build and deploy your distributed applications easily to the cloud with Docker 
 
-		https://docker-curriculum.com/[HowTo]
+https://docker-curriculum.com/[HowTo]
 
 == Next Step DockerSwarm
 
@@ -24,25 +24,25 @@ TIP: DockerSwarm
 video::Tm0Q5zr3FL4[youtube, start=0]
 ****
 
-	https://www.simplilearn.com/tutorials/docker-tutorial/docker-swarm[docker-swarm tutorial^]
+https://www.simplilearn.com/tutorials/docker-tutorial/docker-swarm[docker-swarm tutorial^]
 
 === Getting started with swarm - official from docker
-		https://docs.docker.com/engine/swarm/swarm-tutorial/https://k21academy.com/docker-kubernetes/docker-swarm/[docker-swarm^]
+https://docs.docker.com/engine/swarm/swarm-tutorial/https://k21academy.com/docker-kubernetes/docker-swarm/[docker-swarm^]
 
 === Replicability, use the same files as when developing locally.
-		https://dockerswarm.rocks/[dockerswarm.rocks^]
+https://dockerswarm.rocks/[dockerswarm.rocks^]
 
 === Open Source Cloud Guide από την IBM
-		https://open-cloud-guide.dev/[open-cloud huide^]
+https://open-cloud-guide.dev/[open-cloud huide^]
 
 === Alternatives 
-	https://www.nomadproject.io/[monad^]
-	https://dev.to/stevenmcgown/kubernetes-for-dummies-5hmh[kubernetes^]
+https://www.nomadproject.io/[monad^]
+https://dev.to/stevenmcgown/kubernetes-for-dummies-5hmh[kubernetes^]
 
 === Raft consensus in swarm mode
-	https://docs.docker.com/engine/swarm/raft/[raft^]
-	https://raft.github.io/[raft github^]
-	http://thesecretlivesofdata.com/raft/[raft demo^]
+https://docs.docker.com/engine/swarm/raft/[raft^]
+https://raft.github.io/[raft github^]
+http://thesecretlivesofdata.com/raft/[raft demo^]
 
 == Next Step Storage
 
@@ -53,22 +53,22 @@ video::W2Z7fbCLSTw[youtube, start=0]
 ****
 
 === Generic
-		https://docs.mongodb.com/manual/replication/[Mongo replica^]
-		https://docs.mongodb.com/manual/core/capped-collections/[mongo capped^]
+https://docs.mongodb.com/manual/replication/[Mongo replica^]
+https://docs.mongodb.com/manual/core/capped-collections/[mongo capped^]
 === On memory
-		https://redis.io/topics/cluster-tutorial[Redis cluster^]
-		https://redis.io/[redis server^]
-		https://www.instaclustr.com/blog/redis-vs-memcached/[redis vs memcached^]
+https://redis.io/topics/cluster-tutorial[Redis cluster^]
+https://redis.io/[redis server^]
+https://www.instaclustr.com/blog/redis-vs-memcached/[redis vs memcached^]
 === Sharing
 
 ==== NFS	
-		https://cloud.netapp.com/blog/azure-anf-blg-linux-nfs-server-how-to-set-up-server-and-client[NFS^]
-	   	https://www.gluster.org/[GlusterFS^]	   
+https://cloud.netapp.com/blog/azure-anf-blg-linux-nfs-server-how-to-set-up-server-and-client[NFS^]
+https://www.gluster.org/[GlusterFS^]	   
 
 
 == Deploy
 
-	https://www.compose-spec.io/[docker-compose^]
+https://www.compose-spec.io/[docker-compose^]
 
 ****
 TIP: Deploy
@@ -76,63 +76,93 @@ TIP: Deploy
 video::zLltQxVb3NI[youtube, start=0]
 ****
 
-	https://12factor.net/[12factor^]
+https://12factor.net/[12factor^]
 
 
 == Technologies
 
 === programming language
 ==== nodeJS
-		https://www.youtube.com/watch?v=ENrzD9HAZK4
-		https://nodejs.org/en/
-		https://p5js.org/
-		https://threejs.org/
+****
+TIP: NodeJS
+
+video::ENrzD9HAZK4[youtube, start=0]
+****
+
+https://nodejs.org/en/[nodeJS^]
+
+https://p5js.org/[p5js^]
+
+https://threejs.org/[threejs^]
 
 ==== python
-		https://www.python.org/	
+https://www.python.org/[python^]
 
 === Big data and Scientific analysis
-         	https://numpy.org/
-		https://scipy.org/
-		https://jupyter.org/	
+
+https://numpy.org/[numpy^]
+
+https://scipy.org/[scipy^]
+
+https://jupyter.org/[jupyter^]
 
 === Rest API
-		https://www.youtube.com/watch?v=s7wmiS2mSXY
+****
+TIP: Rest api
+
+video::s7wmiS2mSXY[youtube, start=0]
+****
 
 === Sockets
-		https://www.youtube.com/watch?v=ZBM28ZPlin8
-		https://socket.io/
+****
+TIP: Sockets
+
+video::ZBM28ZPlin8[youtube, start=0]
+****
+
+https://socket.io/[socket.io^]
 
 == Auth
-		https://oauth.net/2/
-		https://oauth.net/code/nodejs/
+
+https://oauth.net/2/[auth2^]
+
+https://oauth.net/code/nodejs/[Nodejs auth library^]
+
 === Auth server	
-		https://www.keycloak.org/
+
+https://www.keycloak.org/[auth2 server^]
 
 == Security VPN etc
-		https://www.wireguard.com/
+https://www.wireguard.com/[simply the best VPN out there^]
 
 == POC
 
 === netflix
 
-		https://www.youtube.com/watch?v=CZ3wIuvmHeM
+****
+TIP: Netflix
+
+video::CZ3wIuvmHeM[youtube, start=0]
+****
 
-		 6:50 monolithic
+ 6:50 monolithic
 
-		 8:24 minroservices
+ 8:24 minroservices
 
-		 19:00 microservice
+ 19:00 microservice
 
-		 see also 37:00
+ see also 37:00
 
-		https://netflix.github.io/
+https://netflix.github.io/[netflix github^]
 
 ===	Robots and IoT
-		https://nodebots.io/
-		http://johnny-five.io/
-		https://ardupilot.org/
-		https://github.com/ArduPilot/ardupilot
+https://nodebots.io/[nodebot^]
+
+http://johnny-five.io/[johny-five^]
+
+https://ardupilot.org/[eduplot^]
+
+https://github.com/ArduPilot/ardupilot[ardupilot^]