blog.robur.coop

The Robur blog.

Essays and ramblings

1. 
   2025-04-10 DNSvizor - run your own DHCP and DNS MirageOS unikernel - gets some testing
   

   The NGI-funded DNSvizor provides core network services on your network; DNS resolution and DHCP.

   • OCaml
   • MirageOS
   • DNSvizor
2. 
   2025-04-07 What's new with Mollymawk?
   

   In this article we explore the journey Mollymawk has been on, inlcuding getting an (NGI0 core) NLnet grant, updates and more.

   • OCaml
   • Mollymawk
   • Albatross
3. 
   2025-03-26 Pushing the opam-repository into a sustainable repository
   

   The main opam-repository was only ever growing by collecting all releases of all packages. We worked hard on reducing the load for all clients by archiving packages.

   • OCaml
   • security
   • performance
   • ecosystem
   • opam-repository
4. 
   2025-03-24 μTCP, Miou and unikernels
   

   My experiment about the TCP/IP stack, effects and unikernels

   • OCaml
   • MirageOS
   • unikernel
   • protocol
   • effects
5. 
   2025-01-07 Git, Carton and emails
   

   A way to store and archive your emails

   • emails
   • storage
   • Git
6. 
   2024-12-04 Sponsor us via GitHub
   

   A new way to sponsor our cooperative

   • cooperative
   • github
7. 
   2024-10-29 Postes, télégraphes et téléphones, next steps
   

   An update of our email stack

   • SMTP
   • emails
   • mailing-lists
8. 
   2024-10-28 GPTar (update)
   

   libarchive vs hybrid GUID partition table and GNU tar volume header

   • OCaml
   • gpt
   • tar
   • mbr
   • persistent storage
9. 
   2024-10-25 Meet DNSvizor: run your own DHCP and DNS MirageOS unikernel
   

   The NGI-funded DNSvizor provides core network services on your network; DNS resolution and DHCP.

   • OCaml
   • MirageOS
   • DNSvizor
10. 
    2024-10-22 Runtime arguments in MirageOS
    

    The history of runtime arguments to a MirageOS unikernel

    • OCaml
    • MirageOS
11. 
    2024-10-21 How has robur financially been doing since 2018?
    

    How we organise as a collective, and why we're doing that.

    • finances
    • cooperative
12. 
    2024-08-21 MirageVPN and OpenVPN
    

    Discoveries made implementing MirageVPN, a OpenVPN-compatible VPN library

    • MirageVPN
    • OpenVPN
    • security
13. 
    2024-08-15 The new Tar release, a retrospective
    

    A little retrospective to the new Tar release and changes

    • OCaml
    • Cstruct
    • functors
14. 
    2024-06-26 Testing MirageVPN against OpenVPN™
    

    Some notes about how we test MirageVPN against OpenVPN™

    • OCaml
    • MirageOS
    • cryptography
    • security
    • testing
    • vpn
15. 
    2024-06-24 qubes-miragevpn, a MirageVPN client for QubesOS
    

    A new OpenVPN client for QubesOS

    • OCaml
    • vpn
    • unikernel
    • QubesOS
16. 
    2024-06-17 MirageVPN server
    

    Announcement of our MirageVPN server.

    • OCaml
    • MirageOS
    • cryptography
    • security
    • VPN
17. 
    2024-04-16 Speeding up MirageVPN and use it in the wild
    

    Performance engineering of MirageVPN, speeding it up by a factor of 25.

    • OCaml
    • MirageOS
    • cryptography
    • security
    • VPN
    • performance
18. 
    2024-02-21 GPTar
    

    Hybrid GUID partition table and tar archive

    • OCaml
    • gpt
    • tar
    • mbr
    • persistent storage
19. 
    2024-02-13 Speeding elliptic curve cryptography
    

    How we improved the performance of elliptic curves by only modifying the underlying byte array

    • OCaml
    • MirageOS
    • cryptography
    • security
20. 
    2024-02-11 Cooperation and Lwt.pause
    

    A disgression about Lwt and Miou

    • OCaml
    • Scheduler
    • Community
    • Unikernel
    • Git
21. 
    2024-02-03 Python's `str.__repr__()`
    

    Reimplementing Python string escaping in OCaml

    • OCaml
    • Python
    • unicode
22. 
    2023-11-20 MirageVPN updated (AEAD, NCP)
    

    How we resurrected MirageVPN from its bitrot state

    • OCaml
    • MirageOS
    • VPN
    • security
23. 
    2023-11-14 MirageVPN & tls-crypt-v2
    

    How we implementated tls-crypt-v2 for miragevpn

    • OCaml
    • MirageOS
    • VPN
    • security