diff --git a/About b/About
index 5e113eb..026e56f 100644
--- a/About
+++ b/About
@@ -1,9 +1,52 @@
 ---
-title: How does this work?
+title: The concept and team
 author: someone
 abstract: some abstract
 ---
 
-The concept of this endeavour.
+# Mission
 
-List of names with some background information
+The goal of robur is to develop robust digital infrastructure.  This goal is
+achieved by continuous maintainence of permissively licensed (MIT/ISC/BSD) open
+source libraries, which are used by various partners and supporters.
+
+Robur is a non-profit endeavour, the ultimate goal is not to earn as much as
+possible, but instead to enable more people to run their own digital
+infrastructure.  Minimising the executable size of services and cutting down
+complexity is crucial to help people to understand the technology.
+
+Rewards (in terms of shirts, money, stickers, retreat attendance) will be given
+to contributors from the open source community.
+
+Experience in developing and deploying the technology itself will be reflected
+on in academic papers, and talks at workshops and conferences.
+
+Transparency is another goal of robur, the annual balance will be accessible to
+the public.
+
+# Non-profit company
+
+Supporters can make charitable donations to robur, which will be used for
+further development and maintainence of software and community infrastructure.
+
+Partners can contract robur to develop prototypes (see example
+[projects](/Projects)).  Developed libraries will be open sourced, and are
+reusable by other interested parties.  The application code itself will be
+exclusively copyrighted by the partner.  Some terms are negotiable, e.g.
+whether the library code will be exclusively licensed to the partner for some
+time (maximum 6 months), influence on the development roadmap, service level
+agreements (on-call debugging, running infrastructure).
+
+# Team
+
+## Alfred
+
+Alfred is a hacker.  He enjoys to write code since more than 15 years, but also
+travelling and repairing his recumbent bicycle, and being a barista.
+
+In 2013, Alfred did his PhD in computer science about formal verification of
+imperative code (using a higher-order separation logic and the theorem prover
+Coq).  At the moment he is busy with reanimating an executable formal model of
+TCP/IP which can act as a test validator.
+
+Alfred co-authored a TLS implementation from the grounds up in OCaml.
diff --git a/Technology b/Technology
index 7d57d73..c714191 100644
--- a/Technology
+++ b/Technology
@@ -4,4 +4,42 @@ author: someone
 abstract: some abstract
 ---
 
-This is the site about our technology
+We develop digital infrastructure with a small footprint.  This is in stark
+contrast with other approaches that try to patch general purpose operating
+systems by adding more layers of indirection.
+
+Each piece of digital infrastructure (or service) is (a) written in a high-level
+memory-safe programming language and (b) specialised to only contain the
+required functionality at compilation time.  This (a) reduces the attack vectors
+and (b) drastically reduces the attack surface.
+
+The resulting service is executed as a virtual machine on any modern hypervisor.
+Its size is usually two orders of magnitude smaller (ranging from kilobytes to
+16 megabytes) than a UNIX, it boots within milliseconds.
+
+As programming language we use [OCaml](https://ocaml.org), a multi-paradigm
+programming language, which unifies functional, imperative, and object-oriented
+programming.  OCaml has an expressive static type system, and type inference.  A
+developer can specify complex invariants in the type system, which are
+checked at compile time, and violations are caught early.
+
+We discuss more reasons why we use OCaml [further down](#WhyOCaml).
+
+## MirageOS
+
+[MirageOS](https://mirage.io) started as a research project at the University
+of Cambridge in 2009.
+
+## Why OCaml
+
+OCaml code can be very fast (our TLS implementation reaches up to
+85% of the throughput of OpenSSL), and compiles either to native code on various
+architectures or to bytecode.  It can even compile to JavaScript.  OCaml is
+memory managed, individual developers don't have to manually allocate and
+release memory (which is a common source of security issues in other operating
+systems).
+
+In 2016, Facebook developed [reason](https://reasonml.github.io/), a dialect of
+OCaml which syntax is closer to JavaScript, and easier to comprehend for
+beginners.  Reason and OCaml code can be easily combined in a single
+application, since the same compiler is used.