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@avdgrinten

Alexander van der Grinten

avdgrinten
Berlin

About me.

I am the maintainer of the free Managarm operating system, the mlibc C library, the LAI ACPI implementation, the xbstrap build system for OS distributions and various supporting projects of Managarm's ecosystem.

Managarm is a modern OS based on a micro-kernel that replaces traditional synchronous I/O by fully asynchronous I/O, at every layer of the system. To achieve this goal, we employ upcoming language features such as C++20 coroutines to write elegant, yet efficient asynchronous code.

Professionally, I work as a postdoctoral computer science researcher (and also maintain NetworKit and SimExPal). However, this GitHub sponsors profile is exclusively about open source projects that are not funded through my employer.

Why do I need your money?

Your money is primarily needed to cover my own costs arising from the open source projects that I maintain. The most essential investments of these projects concern the continuous integration (CI) and hosting infrastructure. Free CI services do not work for us: a full rebuild of the Managarm system takes around 5 hours on a quad-core machine; it generates around 20 GiB of build artifacts of which 1.5 GiB are archived and published (as binary packages). This is well beyond the limits of what free CI providers allow. Hence, we use our own CI infrastructure - which is currently funded mostly by me, a situation that is unsatisfactory in the long term. Your money will allow me to continue to provide CI services for my projects.

What will your money be used for?

First and foremost, your money will be used for:

  • Covering CI and hosting costs arising from the projects that I maintain.

Aside from that, excess funding will be invested into:

  • Promoting Managarm and related projects through talks at open source conferences.
  • Investing into new hardware for driver development and testing.
  • Posting bounties for bugs and new features.

All funding obtained through GitHub sponsors will be reinvested into the open source projects that I maintain (and not for my personal financial gain). For transparency, I will publish a breakdown of the costs caused by those projects every 12 months.

Current sponsors 4

@ElectrodeYT
@N00byEdge
@Dennisbonke
@no92

Past sponsors 3

Private Sponsor
@ArsenArsen
@FUTO-Corporate

Featured work

  1. managarm/managarm

    Pragmatic microkernel-based OS with fully asynchronous I/O

  2. networkit/networkit

    NetworKit is a growing open-source toolkit for large-scale network analysis.

    C++ 738
  3. managarm/mlibc

    Portable C standard library

  4. managarm/xbstrap

    Build system for OS distributions

    Python 58
  5. hu-macsy/simexpal

    Simplifying Experimental Algorithmics

    Python 16

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