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<h2 id=OpenBSD>
<a href="index.html">
<i>Open</i><b>BSD</b></a>
Hackathons
</h2>
<hr>

<p>
In June of 1999, OpenBSD held the first hackathon.  In the months
leading up to this, either Theo or Niels Provos had coined this new
word <dfn>hackathon</dfn>.  A bunch of developers from around the world congregated
into a house in Calgary, and within the week had the first IPv6 and IPSEC
stacks completely integrated into an operating system... an industry
first.. an accidental scrape in a hardwood floor commemorates the event.

<p>
In succeeding years, the OpenBSD development process has benefited
greatly from holding more of these events.  In our form, hackathons
do not have talks, nor a specific schedule.  People will arrive at
a hackathon to work for a straight stretch of time on the projects
they wish to, in the same room as the people who they need to talk
to about their ideas.  Hackathons are about writing code.  At hackathons
there is an attempt to get new changes into the source tree quickly.
Since people from many different timezones are in the same room,
development is almost around the clock.  Developers sometimes joke
about returning home without jet-lag.

<p>
Hackathon attendees come by invitation only.  Some new people in
the community who show promise are sometimes invited to see if they
have what it takes.  However, hackathons are not developer training
events.

<p>
The event space and accommodation is typically funded by
<a href="donations.html">donations to the OpenBSD Project</a>, or
by the <a href="https://www.openbsdfoundation.org">OpenBSD Foundation</a>,
however most developers pay for their own travel.  The facilities
are always chosen to be highly economical; generally near Universities
or in cheaper locales.  If anyone wants to help us <strong>FUND ONE OF THESE
EVENTS OR A DEVELOPER'S TRAVEL</strong>, please contact Theo de Raadt (who
generally has the most knowledge about upcoming options), or directly
offer travel expenses to a developer for the next event.  General
financing is more interesting, but we will entertain offers for free
locations as well.

<p>
Here are some details about past and future events, also showing
a part of the artwork from the event T-shirt (if there was one made).
The shirts are only given to people who attend the event, and are
worn with pride.  Every shirt contains at least one developer in-joke,
so don't worry if you can't understand the shirt.  Just enjoy them.

<table>
<tr>
<td>
    <a id="p2k24" href="images/hackathons/p2k24.png">
    <img src="images/hackathons/p2k24-s.gif" alt="p2k24"></a><br>
    p2k24: ports hackathon<br>
    Apr 12 - 19, 2024<br>
    Ottery St. Mary, UK<br>
    17 developers and an itinerant cat<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    and with the support of Stuart Henderson and <a href="https://www.cadhay.org.uk/">Cadhay</a>.
    <br>
<td>
    <a id="h2k23" href="images/hackathons/h2k23.gif">
    <img src="images/hackathons/h2k23-s.gif" alt="h2k23"></a><br>
    h2k23: hackathon<br>
    Nov 7 - 13, 2023<br>
    Coimbra, Portugal<br>
    18 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    and with the support of University of Coimbra and the portuguese usual suspects.
    <br>
<td>
    <a id="p2k23" href="images/hackathons/p2k23.gif">
    <img src="images/hackathons/p2k23-s.gif" alt="p2k23"></a><br>
    p2k23: ports hackathon<br>
    September 1 - 7, 2023<br>
    Dublin, Ireland<br>
    26 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    and <a href="https://www.ncsc.gov.ie/">NCSC Ireland</a>
    and with the support of Tom Smyth.
    <br>
<tr>
<td>
    <a id="g2k23" href="images/hackathons/noshirt-s.gif">
    <img src="images/hackathons/noshirt-s.gif" alt="noshirt-s"></a><br>
    g2k23: general hackathon<br>
    July 2 - 9, 2023<br>
    Tallinn, Estonia<br>
    20 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>.
    <br>
<td>
    <a id="w2k23" href="images/hackathons/w2k23.gif">
    <img src="images/hackathons/w2k23-s.gif" alt="w2k23"></a><br>
    w2k23: wifi nano hackathon<br>
    May 11 - 17, 2023<br>
    Toulouse, France<br>
    4 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    and with the support of Martin Pieuchot.
    <br>
<td>
    <a id="m2k23" href="images/hackathons/noshirt-s.gif">
    <img src="images/hackathons/noshirt-s.gif" alt="noshirt-s"></a><br>
    m2k23: mini hackathon<br>
    Apr 23- 29, 2023<br>
    Marrakech, Morocco<br>
    22 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>.
<tr>
<td>
    <br><br><br>
    <a id="h2k22" href="images/hackathons/h2k22.gif">
    <img src="images/hackathons/h2k22-s.gif" alt="h2k22"></a><br>
    <br><br><br>
    h2k22: hackathon<br>
    Nov 5 - 12, 2022<br>
    Lousa, Portugal<br>
    22 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">OpenBSD Foundation</a>
    and with the support of Pedro Almeida.
<td>
    <a id="g2k22" href="images/hackathons/g2k22.gif">
    <img src="images/hackathons/g2k22-s.gif" alt="g2k22"></a><br>
    g2k22: hackathon<br>
    Aug 29 - Sep 4, 2022<br>
    Burg Liebenzell, Germany<br>
    25 developers<br>
    Funded by <a href="http://www.genua.de">genua</a> and the
    <a href="https://www.openbsdfoundation.org">OpenBSD Foundation</a>.
<td>
    <a id="r2k22" href="images/hackathons/r2k22.gif">
    <img src="images/hackathons/r2k22-s.gif" alt="r2k22"></a><br>
    r2k22: hackathon<br>
    Jun 25 - Jul 1, 2022<br>
    Bruges, Belgium<br>
    24 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    and with the support of Stefan Sperling.
    <br>
<tr>
<td>
    <a id="h2k21" href="images/hackathons/h2k21.gif">
    <img src="images/hackathons/h2k21-s.gif" alt="h2k21"></a><br>
    h2k21: hackathon<br>
    Oct 20 - Oct 28, 2021<br>
    Gouveia, Portugal<br>
    21 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    and with the support of Pedro Almeida and the
    <a href="https://www.cm-gouveia.pt/">Municipality of Gouveia</a>.
    <br>
<td>
    <a id="k2k21" href="images/hackathons/k2k21.gif">
    <img src="images/hackathons/k2k21-s.gif" alt="k2k21"></a><br>
    k2k21: hackathon<br>
    Aug 29 - Sep 4, 2021<br>
    Burg Liebenzell, Germany<br>
    26 developers<br>
    Funded by <a href="http://www.genua.de">genua</a>.
<td>
    <a id="k2k20" href="images/hackathons/k2k20.gif">
    <img src="images/hackathons/k2k20-s.gif" alt="k2k20"></a><br>
    k2k20: german mini hackathon<br>
    Sep 11 - 17, 2020<br>
    Burg Liebenzell, Germany<br>
    14 developers<br>
    Funded by <a href="http://www.genua.de">genua</a>.
<tr>
<td>
    <a id="a2k20" href="images/hackathons/a2k20.png">
    <img src="images/hackathons/a2k20-s.png" alt="a2k20"></a><br>
    a2k20: antipodian hackathon<br>
    Jan 20 - 27, 2020<br>
    Hobart, Tasmania, Australia<br>
    17 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    and with the support of Ross L Richardson.
<td>
    <a id="u2k20" href="images/hackathons/u2k20.gif">
    <img src="images/hackathons/u2k20-s.gif" alt="u2k20-s"></a><br>
    u2k20: uckermark hackathon<br>
    Jan 12 - 17, 2020<br>
    Uckermark, Germany<br>
    14 developers<br>
    Supported by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a> and <a href="https://www.seehotel-huberhof.de">Seehotel Huberhof</a>.
    <br>
<td>
    <a id="e2k19" href="images/hackathons/e2k19.gif">
    <img src="images/hackathons/e2k19-s.gif" alt="e2k19-s"></a><br>
    e2k19: elk lakes cabin hackathon<br>
    Nov 25 - 30, 2019<br>
    Elk Lakes Cabin, BC, Canada<br>
    13 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    and with the support of <a href="http://www.xplornet.ca">Xplornet</a>.
<tr>
<td>
    <a id="p2k19" href="images/hackathons/p2k19.gif">
    <img src="images/hackathons/p2k19-s.gif" alt="p2k19-s"></a><br>
    p2k19: ports hackathon<br>
    Nov 5 - 12, 2019<br>
    Bucharest, Romania<br>
    18 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>,
    and supported by <a href="http://fmi.unibuc.ro">Faculty of Mathematics and
    Computer Science, University of Bucharest</a>.
    <br>
<td>
    <a id="g2k19" href="images/hackathons/g2k19.gif">
    <img src="images/hackathons/g2k19-s.gif" alt="g2k19-s"></a><br>
    g2k19: general hackathon<br>
    May 7 - 14, 2019<br>
    Ottawa, Canada<br>
    43 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>.
    <br>
<td>
    <a id="t2k19" href="images/hackathons/t2k19.gif">
    <img src="images/hackathons/t2k19-s.gif" alt="t2k19-s"></a><br>
    t2k19: taipei mini hackathon<br>
    Mar 28 - Apr 5, 2019<br>
    Taipei, Taiwan<br>
    16 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    and with the support of Kevin Lo and <a href="http://www.funtoro.com">MSI/FUNTORO</a>
    <br>
<tr>
<td>
    <a id="a2k19" href="images/hackathons/a2k19.gif">
    <img src="images/hackathons/a2k19-s.gif" alt="a2k19-s"></a><br>
    a2k19: antipodean mini hackathon<br>
    Jan 17-24, 2019<br>
    Wellington, New Zealand<br>
    18 developers<br>
    Supported by the <a href="https://www.victoria.ac.nz">Victoria University of Wellington</a>
    and funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>.
    <br>
<td>
    <a id="l2k18" href="images/hackathons/l2k18.jpg">
    <img src="images/hackathons/l2k18-s.gif" alt="l2k18-s"></a><br>
    l2k18: libressl mini hackathon<br>
    Nov 3-11, 2018<br>
    Edmonton, Canada<br>
    5 developers<br>
    Supported by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>.
    <br>
<td>
    <a id="n2k18" href="images/hackathons/n2k18.gif">
    <img src="images/hackathons/n2k18-s.gif" alt="n2k18-s"></a><br>
    n2k18: network hackathon<br>
    Sept 6-11, 2018<br>
    &Uacute;st&iacute; nad Labem, Czech Republic<br>
    11 developers<br>
    Supported by Univerzita Jana Evangelisty Purkyn&#283; and
    funded by Oracle and
    <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>.
<tr>
<td>
    <a id="g2k18" href="images/hackathons/g2k18.gif">
    <img src="images/hackathons/g2k18-s.gif" alt="g2k18-s"></a><br>
    g2k18: general hackathon<br>
    Jul 8-13, 2018<br>
    Ljubljana, Slovenia<br>
    39 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    and with the support of Mitja Mu&#382;eni&#269;.
<td>
    <a id="p2k18" href="images/hackathons/p2k18.gif">
    <img src="images/hackathons/p2k18-s.gif" alt="p2k18-s"></a><br>
    p2k18: ports (and pledge) hackathon<br>
    Apr 23-29, 2018<br>
    Nantes, France<br>
    24 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    and with the support of <a href="http://www.epitech.eu">Epitech Nantes</a>.
<td>
    <a id="a2k18" href="images/hackathons/a2k18.gif">
    <img src="images/hackathons/a2k18-s.gif" alt="a2k18-s"></a><br>
    a2k18: antipodean hackathon<br>
    Feb 5-11, 2018<br>
    Dunedin, New Zealand<br>
    19 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    and with the support of <a href="http://www.otago.ac.nz">University of Otago</a>.
<tr>
<td>
    <a id="s2k17" href="images/hackathons/s2k17.gif">
    <img src="images/hackathons/s2k17-s.gif" alt="s2k17-s"></a><br>
    s2k17: snowshoe hackathon<br>
    Nov 26 - 29, 2017<br>
    Elk Lakes Cabin, BC, Canada<br>
    10 developers<br>
    Funded by <a href="http://www.foretell.ca">ForeTell Technologies</a>
    and with the support of <a href="http://www.xplornet.ca">Xplornet</a>.
<td>
    <a id="p2k17" href="images/hackathons/p2k17.gif">
    <img src="images/hackathons/p2k17-s.gif" alt="p2k17-s"></a><br>
    p2k17: ports hackathon<br>
    Nov 1 - 6, 2017<br>
    Berlin, Germany<br>
    23 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    with the support of <a href="http://www.in-berlin.de">IN-Berlin</a> and
    <a href="http://www.hostserver.de/">Hostserver</a>.
<td>
    <a id="t2k17" href="images/hackathons/t2k17.jpg">
    <img src="images/hackathons/t2k17-s.gif" alt="t2k17-s"></a><br>
    t2k17: general hackathon<br>
    Aug 9 - 15, 2017<br>
    Toronto, Canada<br>
    38 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    and with the support of <a href="http://www.utoronto.ca">University of Toronto</a>.
<tr>
<td>
    <a id="d2k17" href="images/hackathons/d2k17.gif">
    <img src="images/hackathons/d2k17-s.gif" alt="d2k17-s"></a><br>
    d2k17: network mini-hackathon<br>
    May 26 - 31, 2017<br>
    Starnberg, Germany<br>
    24 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    and with the support of <a href="http://www.genua.de">genua</a>.
<td>
    <a id="noshirt" href="images/hackathons/noshirt-s.gif">
    <img src="images/hackathons/noshirt-s.gif" alt="noshirt-s"></a><br>
    e2k17: nano-hackathon<br>
    March 25 - 28, 2017<br>
    Edmonton, Canada<br>
    5 developers<br>
    With the support of Bob Beck.
<td>
    <a id="a2k17" href="images/hackathons/a2k17.gif">
    <img src="images/hackathons/a2k17-s.gif" alt="a2k17-s"></a><br>
    a2k17: antipodean hackathon<br>
    Jan 19 - 26, 2017<br>
    Brisbane, Australia<br>
    19 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    and with the support of David Gwynne.
<tr>
<td>
    <br>
    <br>
    <a id="l2k16" href="images/hackathons/l2k16.gif">
    <img src="images/hackathons/l2k16-s.gif" alt="l2k16-s"></a><br>
    <br>
    <br>
    <br>
    <br>
    <br>
    <br>
    <br>
    <br>
    <br>
    l2k16: libressl hackathon<br>
    Nov 2 - 6, 2016<br>
    Toulouse, France<br>
    9 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    with the help of <a href="http://www.enseeiht.fr">ENSEEIHT</a> and
    <a href="http://www.objectif-libre.com">Objectif Libre</a>.
<td>
    <a id="b2k16" href="images/hackathons/b2k16.gif">
    <img src="images/hackathons/b2k16-s.gif" alt="b2k16-s"></a><br>
    b2k16: budapest ports hackathon<br>
    Oct 31 - Nov 5, 2016<br>
    Budapest, Hungary<br>
    10 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>.
<td>
    <a id="g2k16" href="images/hackathons/g2k16.gif">
    <img src="images/hackathons/g2k16-s.gif" alt="g2k16-s"></a><br>
    g2k16: general hackathon<br>
    Aug 30 - Sep 5, 2016<br>
    Cambridge, UK<br>
    62 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    with the help of
    <a href="http://www.cl.cam.ac.uk">Computer Laboratory, Cambridge</a>.
<tr>
<td>
    <a id="n2k16" href="images/hackathons/n2k16.gif">
    <img src="images/hackathons/n2k16-s.gif" alt="n2k16-s"></a><br>
    n2k16: network hackathon<br>
    Jul 18 - 22, 2016<br>
    Prague, Czech Republic<br>
    18 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    and <a href="http://www.oracle.com">Oracle</a>, with the help of
    <a href="http://cuni.cz">Charles University</a>.
<td>
    <a id="p2k16" href="images/hackathons/p2k16.gif">
    <img src="images/hackathons/p2k16-s.gif" alt="p2k16-s"></a><br>
    p2k16: ports hackathon<br>
    Apr 25 - 29, 2016<br>
    Nantes, France<br>
    22 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    and with the support of <a href="http://www.epitech.eu">Epitech Nantes</a>.
<td>
    <a id="n2k15" href="images/hackathons/n2k15.gif">
    <img src="images/hackathons/n2k15-s.gif" alt="n2k15-s"></a><br>
    n2k15: network MP hackathon<br>
    Dec 1 - 6, 2015<br>
    Hannover, Germany<br>
    19 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    and with the support of <a href="http://esdenera.com">Esdenera Networks</a>.
<tr>
<td>
    <a id="u2k15" href="images/hackathons/u2k15.gif">
    <img src="images/hackathons/u2k15-s.gif" alt="u2k15-s"></a><br>
    u2k15: utf8 hackathon<br>
    Oct 22 - 27, 2015<br>
    Berlin, Germany<br>
    22 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    and with the support of <a href="http://www.in-berlin.de">IN-Berlin</a>.
<td>
    <a id="l2k15" href="images/hackathons/l2k15.gif">
    <img src="images/hackathons/l2k15-s.gif" alt="l2k15-s"></a><br>
    l2k15: libressl hackathon<br>
    Sep 8 - 13, 2015<br>
    <a href="http://foi.unizg.hr">Faculty of Organization and Informatics</a>, Vara&#382;din, Croatia<br>
    17 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    with help of the <a href="http://foi.unizg.hr">Open Systems and Security Lab</a>.
<td>
    <a id="j2k15" href="images/hackathons/j2k15.gif">
    <img src="images/hackathons/j2k15-s.gif" alt="j2k15-s"></a><br>
    j2k15: uefi hackathon<br>
    Aug 30 - Sep 2, 2015<br>
    Nasu, Tochigi, Japan<br>
    6 developers<br>
    With the support of <a href="http://www.iij-ii.co.jp/en/">IIJ innovation institute</a>.
<tr>
<td>
    <a id="c2k15" href="images/hackathons/c2k15.gif">
    <img src="images/hackathons/c2k15-s.gif" alt="c2k15-s"></a><br>
    c2k15: general hackathon<br>
    Jul 15 - 21, 2015<br>
    Calgary, Canada<br>
    45 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    and with the support of <a href="http://sait.ca">SAIT</a>.
<td>
    <a id="p2k15" href="images/hackathons/p2k15.gif">
    <img src="images/hackathons/p2k15-s.gif" alt="p2k15-s"></a><br>
    p2k15: ports mini hackathon<br>
    Apr 2 - 7, 2015<br>
    Exeter, UK<br>
    14 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    and with the support of Andy Henderson.
<td>
    <a id="s2k15" href="images/hackathons/s2k15.gif">
    <img src="images/hackathons/s2k15-s.gif" alt="s2k15-s"></a><br>
    s2k15: southern mini hackathon<br>
    Feb 6 - 13, 2015<br>
    Brisbane, Australia<br>
    21 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    and with the support of David Gwynne.
<tr>
<td>
    <a id="g2k14" href="images/hackathons/g2k14.gif">
    <img src="images/hackathons/g2k14-s.gif" alt="g2k14-s"></a><br>
    g2k14: general hackathon<br>
    July 8 - 14, 2014<br>
    Ljubljana, Slovenia<br>
    49 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    and with the support of Mitja Mu&#382;eni&#269;.
<td>
    <a id="m2k14" href="images/hackathons/m2k14.gif">
    <img src="images/hackathons/m2k14-s.gif" alt="m2k14-s"></a><br>
    m2k14: mini hackathon<br>
    Apr 17 - 22, 2014<br>
    Marrakech, Morocco<br>
    12 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    and with the support of <a href="http://www.uca.ma/">Universit&eacute; Cadi Ayyad</a>.
<td>
    <a id="n2k14" href="images/hackathons/n2k14.gif">
    <img src="images/hackathons/n2k14-s.gif" alt="n2k14-s"></a><br>
    n2k14: mini hackathon<br>
    Jan 18 - 25, 2014<br>
    Dunedin, New Zealand<br>
    15 developers<br>
    Funded by <a href="http://www.foretell.ca">ForeTell Technologies</a>
    and with the support of <a href="http://www.otago.ac.nz">University of Otago</a>.
<tr>
<td>
    <a id="b2k13" href="images/hackathons/b2k13.gif">
    <img src="images/hackathons/b2k13-s.gif" alt="b2k13-s"></a><br>
    b2k13: mini hackathon<br>
    Oct 17 - 21, 2013<br>
    Berlin, Germany<br>
    21 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    and with the support of <a href="http://www.in-berlin.de">IN-Berlin</a>.
<td>
    <a id="t2k13" href="images/hackathons/t2k13.jpg">
    <img src="images/hackathons/t2k13-s.gif" alt="t2k13-s"></a><br>
    t2k13: general hackathon<br>
    May 29 - Jun 5, 2013<br>
    Toronto, Canada<br>
    43 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    and with the support of <a href="http://www.utoronto.ca">University of Toronto</a>.
<td>
    <a id="n2k13" href="images/hackathons/n2k13.gif">
    <img src="images/hackathons/n2k13-s.gif" alt="n2k13-s"></a><br>
    n2k13: network hackathon<br>
    Jan 13 - 19, 2013<br>
    Dunedin, New Zealand<br>
    17 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    and with the support of <a href="http://www.otago.ac.nz">University of Otago</a>.
<tr>
<td>
    <a id="c2k12" href="images/hackathons/c2k12.gif">
    <img src="images/hackathons/c2k12-s.gif" alt="c2k12-s"></a><br>
    c2k12: coimbra hackathon<br>
    Nov 14 - 20, 2012<br>
    Coimbra, Portugal<br>
    10 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    and with the support of <a href="http://www.uc.pt">University of Coimbra</a>.
<td>
    <a id="p2k12" href="images/hackathons/p2k12.gif">
    <img src="images/hackathons/p2k12-s.gif" alt="p2k12-s"></a><br>
    p2k12: ports hackathon<br>
    Oct 8 - 13, 2012<br>
    Budapest, Hungary<br>
    9 developers<br>
    Funded by <a href="donations.html">donations to
    The OpenBSD Project</a>.
<td>
    <a id="n2k12" href="images/hackathons/n2k12.gif">
    <img src="images/hackathons/n2k12-s.gif" alt="n2k12-s"></a><br>
    n2k12: network hackathon<br>
    Sep 17 - 21, 2012<br>
    Starnberg, Germany<br>
    23 developers<br>
    Funded by <a href="http://www.genua.de">genua</a>.
<tr>
<td>
    <a id="g2k12" href="images/hackathons/g2k12.gif">
    <img src="images/hackathons/g2k12-s.gif" alt="g2k12-s"></a><br>
    g2k12: general hackathon<br>
    Jul 7 - 14, 2012<br>
    Budapest, Hungary<br>
    41 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>.
<td>
    <a id="r2k12" href="images/hackathons/r2k12.gif">
    <img src="images/hackathons/r2k12-s.gif" alt="r2k12-s"></a><br>
    r2k12: rthreads hackathon<br>
    Apr 10 - 14, 2012<br>
    Paris, France<br>
    16 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    and support of <a href="http://www.ihp.fr">Institute Henri Poincar&eacute;</a> and
    <a href="http://www.u-psud.fr">Paris-Sud University</a>.
<td>
    <a id="p2k11" href="images/hackathons/p2k11.gif">
    <img src="images/hackathons/p2k11-s.gif" alt="p2k11-s"></a><br>
    p2k11: Ports hackathon<br>
    Nov 12 - 18, 2011<br>
    Budapest, Hungary<br>
    15 developers<br>
    Funded by <a href="donations.html">donations to
    the OpenBSD Project</a>.
<tr>
<td>
    <a id="a2k11" href="images/hackathons/a2k11.gif">
    <img src="images/hackathons/a2k11-s.gif" alt="a2k11-s"></a><br>
    a2k11: ARM hackathon<br>
    Nov 5 - 12, 2011<br>
    Coimbra, Portugal<br>
    8 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    and with the support of <a href="http://www.uc.pt">University of Coimbra</a>.
<td>
    <a id="s2k11" href="images/hackathons/s2k11.jpg">
    <img src="images/hackathons/s2k11-s.gif" alt="s2k11-s"></a><br>
    s2k11: General hackathon<br>
    Sep 16 - 23, 2011<br>
    Ljubljana, Slovenia<br>
    25 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    and with the support of Mitja Mu&#382;eni&#269;.
<td>
    <a id="c2k11" href="images/hackathons/c2k11.gif">
    <img src="images/hackathons/c2k11-s.gif" alt="c2k11-s"></a><br>
    c2k11: General hackathon<br>
    Jul 2 - 9, 2011<br>
    Edmonton, Alberta, Canada<br>
    36 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>.
<tr>
<td>
    <a id="k2k11" href="images/hackathons/k2k11.jpg">
    <img src="images/hackathons/k2k11-s.gif" alt="k2k11-s"></a><br>
    k2k11: Kernel hackathon<br>
    Apr 1 - 7, 2011<br>
    Hafnarfjordur, Iceland<br>
    15 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>.
<td>
    <a id="p2k10" href="images/hackathons/p2k10.gif">
    <img src="images/hackathons/p2k10-s.gif" alt="p2k10-s"></a><br>
    p2k10: Ports hackathon<br>
    Oct 23 - 29, 2010<br>
    Budapest, Hungary<br>
    19 developers<br>
    Funded by <a href="donations.html">donations to
    the OpenBSD Project</a>.
<td>
    <a id="j2k10" href="images/hackathons/j2k10.gif">
    <img src="images/hackathons/j2k10-s.gif" alt="j2k10-s"></a><br>
    j2k10: mini-hackathon in Japan<br>
    Sep 19 - 25, 2010<br>
    Akiyamago, Sakae Mura, Nagano, Japan<br>
    19 developers<br>
<tr>
<td>
    <a id="c2k10" href="images/hackathons/c2k10.gif">
    <img src="images/hackathons/c2k10-s.gif" alt="c2k10-s"></a><br>
    c2k10: General hackathon<br>
    Jun 25 - Jul 3, 2010<br>
    Edmonton, Alberta, Canada<br>
    46 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>.
<td>
    <br>
    <br>
    <a id="n2k10" href="images/hackathons/n2k10.gif">
    <img src="images/hackathons/n2k10-s.gif" alt="n2k10-s"></a><br>
    <br>
    <br>
    <br>
    <br>
    <br>
    n2k10: Network hackathon<br>
    Jan 9 - 15, 2010<br>
    Melbourne, Australia<br>
    17 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>
    and support of
    <a href="http://vpac.org">Victorian Partnership for Advanced Computing</a>
<td>
    <a id="h2k9" href="images/hackathons/h2k9.gif">
    <img src="images/hackathons/h2k9-s.gif" alt="h2k9-s"></a><br>
    h2k9: Hardware hackathon<br>
    Nov 21 - 27, 2009<br>
    Coimbra, Portugal<br>
    15 developers<br>
    Funded by <a href="donations.html">donations to
    the OpenBSD Project</a>
    and with the support of <a href="http://www.uc.pt">University of Coimbra</a>.
<tr>
<td>
    <a id="p2k9" href="images/hackathons/p2k9.gif">
    <img src="images/hackathons/p2k9-s.gif" alt="p2k9-s"></a><br>
    p2k9: Ports hackathon<br>
    Oct 9 - 16, 2009<br>
    Budapest, Hungary<br>
    14 developers<br>
    Funded by <a href="donations.html">donations to
    the OpenBSD Project</a>.
<td>
    <a id="f2k9" href="images/hackathons/f2k9.gif">
    <img src="images/hackathons/f2k9-s.gif" alt="f2k9-s"></a><br>
    f2k9: Filesystem/uvm hackathon<br>
    Aug 7 - 14, 2009<br>
    Stockholm, Sweden<br>
    14 developers<br>
    Funded by <a href="https://www.iis.se/english/">.se Foundation</a>.
<td>
    <a id="c2k9" href="images/hackathons/c2k9.gif">
    <img src="images/hackathons/c2k9-s.gif" alt="c2k9-s"></a><br>
    c2k9: General hackathon<br>
    May 30 - Jun 7, 2009<br>
    Edmonton, Alberta, Canada<br>
    46 developers<br>
    Funded by <a href="donations.html">donations to
    the OpenBSD Project</a>.
<tr>
<td>
    <a id="n2k9" href="images/hackathons/n2k9.gif">
    <img src="images/hackathons/n2k9-s.gif" alt="n2k9-s"></a><br>
    n2k9: Network hackathon<br>
    Jan 26 - 30, 2009<br>
    Basel, Switzerland<br>
    19 developers<br>
<td>
    <a id="h2k8" href="images/hackathons/h2k8.gif">
    <img src="images/hackathons/h2k8-s.gif" alt="h2k8-s"></a><br>
    h2k8: Hardware hackathon<br>
    Nov 20 - 27, 2008<br>
    Coimbra, Portugal<br>
    18 developers<br>
    Funded by <a href="donations.html">donations to
    the OpenBSD Project</a>
    and with the support of <a href="http://www.uc.pt">University of Coimbra</a>.
<td>
    <a id="p2k8" href="images/hackathons/p2k8.gif">
    <img src="images/hackathons/p2k8-s.gif" alt="p2k8-s"></a><br>
    p2k8: Ports hackathon<br>
    Oct 24 - 31, 2008<br>
    Budapest, Hungary<br>
    13 developers<br>
    Funded by <a href="donations.html">donations to
    the OpenBSD Project</a>.
<tr>
<td>
    <a id="c2k8" href="images/hackathons/c2k8.gif">
    <img src="images/hackathons/c2k8-s.gif" alt="c2k8-s"></a><br>
    c2k8: General hackathon<br>
    June 6-15, 2008<br>
    Edmonton, Alberta, Canada<br>
    55 developers<br>
    Funded by <a href="https://www.openbsdfoundation.org">The OpenBSD Foundation</a>.
<td>
    <a id="n2k8" href="images/hackathons/n2k8.gif">
    <img src="images/hackathons/n2k8-s.gif" alt="n2k8-s"></a><br>
    n2k8: Network hackathon<br>
    May 5-10, 2008<br>
    Ito, Japan<br>
    18 developers<br>
    Funded by <a href="donations.html">donations to
    the OpenBSD Project</a> and Mark Uemura.
<td>
    <a id="h2k7" href="images/hackathons/h2k7.gif">
    <img src="images/hackathons/h2k7-s.gif" alt="h2k7-s"></a><br>
    h2k7: Hardware hackathon<br>
    Nov 22 - 29, 2007<br>
    Coimbra, Portugal<br>
    11 developers<br>
    Funded by <a href="donations.html">donations to
    the OpenBSD Project</a>
    and with the support of <a href="http://www.uc.pt">University of Coimbra</a>.
<tr>
<td>
    <a id="p2k7" href="images/hackathons/p2k7.gif">
    <img src="images/hackathons/p2k7-s.gif" alt="p2k7-s"></a><br>
    p2k7: Focused on ports<br>
    Oct 22 - 28, 2007<br>
    Budapest, Hungary<br>
    13 developers<br>
    Funded by <a href="donations.html">donations to
    the OpenBSD Project</a>.
<td>
    <a id="c2k7" href="images/hackathons/c2k7.gif">
    <img src="images/hackathons/c2k7-s.gif" alt="c2k7-s"></a><br>
    c2k7: General hackathon<br>
    May 25 - Jun 2, 2007<br>
    Calgary, Alberta, Canada<br>
    50 developers<br>
    Funded by <a href="donations.html">donations to
    the OpenBSD Project</a>.
<td>
    <a id="f2k7" href="images/hackathons/f2k7.gif">
    <img src="images/hackathons/f2k7-s.gif" alt="f2k7-s"></a><br>
    f2k7: Focused on Filesystems<br>
    Apr 10 - 15, 2007<br>
    Vienna, Austria<br>
    14 developers<br>
    Funded by <a href="donations.html">donations to
    the OpenBSD Project</a>.
<tr>
<td>
    <a id="h2k6" href="images/hackathons/h2k6.gif">
    <img src="images/hackathons/h2k6-s.gif" alt="h2k6-s"></a><br>
    h2k6: Focused on drivers for hardware<br>
    Nov 25 - 30, 2006<br>
    Coimbra, Portugal<br>
    14 developers<br>
    Funded by <a href="donations.html">donations to
    the OpenBSD Project</a>
    and with the support of <a href="http://www.uc.pt">University of Coimbra</a>.
<td>
    <a id="p2k6" href="images/hackathons/p2k6.gif">
    <img src="images/hackathons/p2k6-s.gif" alt="p2k6-s"></a><br>
    p2k6: Focused on ports<br>
    Oct 18 - 22, 2006<br>
    Budapest, Hungary<br>
    14 developers<br>
    Funded by <a href="donations.html">donations to
    the OpenBSD Project</a>.
<td>
    <a id="k2k6" href="images/hackathons/k2k6.gif">
    <img src="images/hackathons/k2k6-s.gif" alt="k2k6-s"></a><br>
    k2k6: Focused on IPSEC and IKE<br>
    Aug 28 - Sep 1, 2006<br>
    Schloss Kransberg, Germany<br>
    14 developers<br>
<tr>
<td>
    <a id="r2k6" href="images/hackathons/r2k6.gif">
    <img src="images/hackathons/r2k6-s.gif" alt="r2k6-s"></a><br>
    r2k6: Focused on network routing<br>
    Jun 14 - 18, 2006<br>
    Hamburg, Germany<br>
    6 developers<br>
    Support of Henning Brauer.
<td>
    <a id="c2k6" href="images/hackathons/c2k6.gif">
    <img src="images/hackathons/c2k6-s.gif" alt="c2k6-s"></a><br>
    c2k6: General hackathon<br>
    May 21 - 29, 2006<br>
    Calgary, Alberta, Canada<br>
    47 developers<br>
    Funded by <a href="donations.html">donations to
    the OpenBSD Project</a>.
<td>
    <a id="v2k5" href="images/hackathons/v2k5.gif">
    <img src="images/hackathons/v2k5-s.gif" alt="v2k5-s"></a><br>
    v2k5: Focused on ports<br>
    Nov 1 - 4, 2005<br>
    San Servolo, Venice, Italy<br>
    12 developers<br>
    Funded by <a href="donations.html">donations to
    the OpenBSD Project</a>.
<tr>
<td>
    <a id="c2k5" href="images/hackathons/c2k5.gif">
    <img src="images/hackathons/c2k5-s.gif" alt="c2k5-s"></a><br>
    c2k5: General hackathon<br>
    May 21 - 28, 2005<br>
    Calgary, Alberta, Canada<br>
    60 developers<br>
    Funded by <a href="donations.html">donations to
    the OpenBSD Project</a>.
<td>
    <a id="c2k4" href="images/hackathons/c2k4.gif">
    <img src="images/hackathons/c2k4-s.gif" alt="c2k4-s"></a><br>
    c2k4: General hackathon<br>
    Jun 19 - 26, 2004<br>
    Calgary, Alberta, Canada<br>
    46 developers<br>
    Funded by <a href="donations.html">donations to
    the OpenBSD Project</a>.
<td>
    <a id="pf2k4" href="images/hackathons/pf2k4.gif">
    <img src="images/hackathons/pf2k4-s.gif" alt="pf2k4-s"></a><br>
    pf2k4: Focused on pf development<br>
    Apr 24 - 28, 2004<br>
    Sechelt, BC, Canada<br>
    12 developers<br>
    Support of Ryan McBride.
<tr>
<td>
    <a id="c2k3" href="images/hackathons/c2k3.gif">
    <img src="images/hackathons/c2k3-s.gif" alt="c2k3-s"></a><br>
    c2k3: General hackathon<br>
    May 8 - 20, 2003<br>
    Calgary, Alberta, Canada<br>
    51 developers<br>
    Funded by <a href="https://www.nlnetlabs.nl">NLnet</a>
    (after DARPA pulled out their support).
<td>
    <a id="c2k2" href="images/hackathons/c2k2.gif">
    <img src="images/hackathons/c2k2-s.gif" alt="c2k2-s"></a><br>
    c2k2: General hackathon<br>
    Jun 4 - 12, 2002<br>
    Calgary, Alberta, Canada<br>
    42 developers<br>
    Funded by DARPA.
<td>
    <a id="c2k1-2" href="images/hackathons/noshirt-s.gif">
    <img src="images/hackathons/noshirt-s.gif" alt="noshirt-s"></a><br>
    c2k1-2: Focused on sparc64<br>
    Aug 17 - 20, 2001<br>
    Washington, DC<br>
    Funded by DARPA with support of <a href="http://www.usenix.org">USENIX</a>.
<tr>
<td>
    <a id="c2k1" href="images/hackathons/noshirt-s.gif">
    <img src="images/hackathons/noshirt-s.gif" alt="noshirt-s"></a><br>
    c2k1: Birth of PF<br>
    Jun 21 - 26, 2001<br>
    Cambridge, Massachusetts<br>
    25 developers<br>
    Funded by DARPA with the support of <a href="http://www.mit.edu">MIT</a>.
<td>
    <a id="c2k" href="images/hackathons/noshirt-s.gif">
    <img src="images/hackathons/noshirt-s.gif" alt="noshirt-s"></a><br>
    c2k: General hackathon<br>
    Jun 15 - 18, 2000<br>
    Calgary, Alberta, Canada<br>
    18 developers<br>
    Funded by <a href="donations.html">donations to
    the OpenBSD Project</a>.
<td>
    <a id="c99" href="images/hackathons/noshirt-s.gif">
    <img src="images/hackathons/noshirt-s.gif" alt="noshirt-s"></a><br>
    c99: Focused on IPSEC<br>
    Jun 4 - 6, 1999<br>
    Calgary, Alberta, Canada<br>
    10 developers<br>
    Funded by Theo de Raadt.
</table>

Most tshirt concepts designed by artist with Theo de Raadt or Bob Beck.<br>
c2k2, c2k3, v2k5, c2k6, r2k6, k2k6, p2k6, h2k6, f2k7, c2k7, p2k7, h2k7, n2k8, c2k8, p2k8, h2k8, n2k9,<br>c2k9, f2k9, p2k9, h2k9, c2k10, j2k10, p2k10, c2k11, s2k11, a2k11, p2k11 drawn by Ty Semaka.<br>
pf2k4, c2k4, and c2k5 drawn by David Woloschuk.<br>
n2k10 drawn by Theo de Raadt, refined by Ty Semaka.<br>
c2k10, j2k10, and p2k10 drawn by Damon Mlekuz.<br>
k2k11 drawn by Bret Lambert.<br>
r2k12, g2k12, n2k12, b2k13, n2k14, m2k14, g2k14, s2k15, c2k15, l2k15, p2k16, g2k16, b2k16, a2k17,<br>d2k17, p2k17, s2k17, a2k18, p2k18, g2k18, a2k19, t2k19, g2k19, p2k19, e2k19, a2k20, k2k20 drawn by Markus Hall.<br>
p2k12 drawn by Bidon Mickael aka Mogmi.<br>
c2k12 drawn by Theo de Raadt.<br>
n2k13 is a purchased shirt, with an annotation added.<br>
t2k13 drawn by Brett Knowles.<br>
p2k15 drawn by Naomi Parkinson.<br>
j2k15 drawn by Ayako Ogawa / Yojiro UO.<br>
u2k15 drawn by Neels Hofmeyr.<br>
n2k15 drawn by Nick B&ouml;se.<br>
n2k16 drawn by Jojin&amp;HedgeHog.<br>
l2k16 concept by Joel Sing, layout by Markus Hall.<br>
t2k17 drawn by Christopher Roberts.<br>
n2k18 drawn by Jojin&amp;HedgeHog.<br>
u2k20 drawn by Pamela Mosiejczuk.<br>
k2k21, h2k21 drawn by Natasha Allegri.<br>
r2k22 by Job Snijders &amp; Yann Faussurier.<br>
g2k22 by Sagana Squale.<br>
h2k22 by Pedro Almeida.<br>
w2k23 by Stefan Sperling.<br>
p2p23 by Sophie Smyth.<br>
h2k23 by António Sampaio.<br>
p2k24 by Naomi Parkinson.<br>