home.md

@@ -4,9 +4,11 @@ This is the home of LIGO's Next Generation Data Delivery (NGDD) project, the aim
 
 ![concept_full](uploads/eecb16d304cc6f02c521271a359bc505/concept_full.png)
 
-## talks and presentations
+## talks, presentations, documentation
 
+- [Arrakis: Next-Generation Data Distribution and Stream Processing for Gravitational-Wave Observation (techincal description)](https://dcc.ligo.org/LIGO-T2500353)
 - [The next generation of low-latency data distribution and stream processing for LIGO](https://dcc.ligo.org/LIGO-G2200571)
+- [Requirements document (draft)](https://ngdd.docs.ligo.org/requirements-doc/ngdd-requirements.pdf)
 - [NGDD architecture overview](https://docs.google.com/presentation/d/1ItEeNtkLCAzxBYc-dLtPY35C1EBXQwQBV2LmgEPn2LI/edit?usp=sharing)
 - [NGDD serialization overview](https://docs.google.com/presentation/d/1OGFqV7TBqMlqXr9I_JoOokDyZGW6KcC_REuoMjg22Eg/edit?usp=sharing)
 
@@ -22,7 +24,6 @@ This is the home of LIGO's Next Generation Data Delivery (NGDD) project, the aim
 
 - [[todo]]
 - [Live monitor of LHO infrastructure](https://grafana.ligo-wa.caltech.edu/d/HnFEtyB7z/kafka-metrics?orgId=1&from=now-15m&to=now&refresh=5s)
-- [Requirements document (draft)](https://ngdd.docs.ligo.org/requirements-doc/ngdd-requirements.pdf)
 - [Client Protocol Schema](Client-Protocol-Schema)
 - [Publisher Protocol Schema](Publisher-Protocol-Schema)
 - [NGDD dev workshop, Jan. 2022](https://dcc.ligo.org/cgi-bin/private/DocDB/DisplayMeeting?conferenceid=1128)