page_bof.html

---
layout: page
title: Birds of a Feather
permalink: /bof
---

{% assign all_bofs = site.bofs | sort: 'start_date' %}
{% assign bofs = all_bofs | reverse %}
{% assign today = site.time | date: "%Y-%m-%d" %}
{% assign upcoming = all_bofs | where_exp: "b", "b.start_date >= today" %}
{% assign past = bofs | where_exp: "b", "b.start_date < today" %}
{% assign first_year = all_bofs.first.start_date | slice: 0, 4 %}
{% assign this_year = today | slice: 0, 4 %}
{% assign span_years = this_year | minus: first_year | plus: 1 %}
{% assign people = 0 %}
{% for b in site.bofs %}
{% if b.speakers %}{% assign people = people | plus: b.speakers.size %}{% endif %}
{% if b.organizers %}{% assign people = people | plus: b.organizers.size %}{% endif %}
{% endfor %}

<section class="bofx-hero">
    <div class="container">
        <div class="bofx-hero-card" data-aos="fade-up">
            <div class="bofx-hero-glow"></div>
            <div class="bofx-hero-inner">
                <div class="bofx-eyebrow"><span class="bofx-dot"></span>Birds of a Feather</div>
                <h1>Focused conversations that<br class="d-none d-lg-block" /> connect communities</h1>
                <p class="bofx-lead">BoF sessions gather researchers, developers, and users from across workflow systems at major
                    conferences to debate the challenges and opportunities shaping the field &mdash; in the open, and in person.</p>
                <div class="bofx-stats">
                    <div class="bofx-stat">
                        <strong>{{ site.bofs | size }}</strong>
                        <span>Sessions held</span>
                    </div>
                    <div class="bofx-stat">
                        <strong>{{ span_years }}</strong>
                        <span>Years running</span>
                    </div>
                    <div class="bofx-stat">
                        <strong>{{ people }}+</strong>
                        <span>Speakers &amp; organizers</span>
                    </div>
                    <div class="bofx-stat">
                        <strong>3</strong>
                        <span>Conference series</span>
                    </div>
                </div>
            </div>
        </div>
    </div>
</section>

{% if upcoming.size > 0 %}
<section class="bofx-next">
    <div class="container">
        <div class="bofx-section-head" data-aos="fade-up">
            <h2><span class="bofx-live"></span>Coming up next</h2>
            <p>Join us at the next gathering &mdash; everyone is welcome, no registration required beyond the conference itself.</p>
        </div>
        {% for bof in upcoming %}
        {% if bof.title contains "ISC" %}{% assign series = "ISC" %}{% elsif bof.title contains "ECP" %}{% assign series = "ECP" %}{% elsif bof.title contains "SC" %}{% assign series = "SC" %}{% else %}{% assign series = "BoF" %}{% endif %}
        {% assign year = bof.start_date | slice: 0, 4 %}
        {% assign banner = "" %}
        {% unless bof.image contains "wci-default-card" %}{% assign banner = bof.image %}{% endunless %}
        <a class="bofx-feature" href="{{ bof.url }}" data-aos="fade-up">
            <div class="bofx-feature-visual">
                <div class="bofx-feature-badge">Upcoming</div>
                {% if banner != "" %}
                <img class="bofx-feature-photo" src="{{ banner }}" alt="{{ bof.title }} announcement" />
                {% elsif bof.conference_logo %}
                <div class="bofx-feature-logo"><img src="{{ bof.conference_logo }}" alt="{{ series }} {{ year }} logo" loading="lazy" /></div>
                {% else %}
                <div class="bofx-feature-logo bofx-logo-text">{{ series }} {{ year }}</div>
                {% endif %}
                {% if bof.event_date contains "," %}
                <div class="bofx-countdown" data-bof-date="{{ bof.start_date }}"></div>
                {% else %}
                <div class="bofx-when">{{ bof.event_date }}</div>
                {% endif %}
            </div>
            <div class="bofx-feature-body">
                <div class="bofx-tags">
                    <span class="bofx-tag bofx-tag-{{ series | downcase }}">{{ series }} {{ year }}</span>
                    {% if bof.title contains "Streaming" %}<span class="bofx-tag bofx-tag-track">Data Streaming</span>{% endif %}
                </div>
                <h3>{{ bof.subtitle | default: bof.title }}</h3>
                <div class="bofx-meta">
                    <div class="bofx-meta-item">
                        <i class="bi bi-calendar-event"></i>
                        <div><span>Date</span><strong>{{ bof.event_date | split: " - " | last }}</strong></div>
                    </div>
                    <div class="bofx-meta-item">
                        <i class="bi bi-clock"></i>
                        <div><span>Time</span><strong>{{ bof.time | default: "TBA" }}</strong></div>
                    </div>
                    <div class="bofx-meta-item">
                        <i class="bi bi-geo-alt"></i>
                        <div><span>Room</span><strong>{{ bof.room | default: "TBA" }}</strong></div>
                    </div>
                </div>
                {% if bof.speakers %}
                <div class="bofx-people">
                    <div class="bofx-avatars">
                        {% for s in bof.speakers limit: 5 %}
                        <img src="{{ s.image }}" alt="{{ s.name }}" title="{{ s.name }}" loading="lazy" />
                        {% endfor %}
                        {% if bof.speakers.size > 5 %}<span class="bofx-avatar-more">+{{ bof.speakers.size | minus: 5 }}</span>{% endif %}
                    </div>
                    <span class="bofx-people-label">{{ bof.speakers.size }} featured speakers</span>
                </div>
                {% endif %}
                <span class="bofx-cta">View session details <i class="bi bi-arrow-right"></i></span>
            </div>
        </a>
        {% endfor %}
    </div>
</section>
{% endif %}

<section class="bofx-archive">
    <div class="container">
        <div class="bofx-section-head bofx-section-head-row" data-aos="fade-up">
            <div>
                <h2>Past sessions</h2>
                <p>Slides, notes, and recordings from previous gatherings.</p>
            </div>
            <div class="bofx-filters" role="group" aria-label="Filter sessions by conference series">
                <button type="button" class="bofx-filter is-active" data-filter="all">All</button>
                <button type="button" class="bofx-filter" data-filter="SC">SC</button>
                <button type="button" class="bofx-filter" data-filter="ISC">ISC</button>
                <button type="button" class="bofx-filter" data-filter="ECP">ECP</button>
            </div>
        </div>

        <div class="bofx-timeline">
            {% assign last_year = "" %}
            {% for bof in past %}
            {% assign year = bof.start_date | slice: 0, 4 %}
            {% if bof.title contains "ISC" %}{% assign series = "ISC" %}{% elsif bof.title contains "ECP" %}{% assign series = "ECP" %}{% elsif bof.title contains "SC" %}{% assign series = "SC" %}{% else %}{% assign series = "BoF" %}{% endif %}
            {% assign banner = "" %}
            {% unless bof.image contains "wci-default-card" %}{% assign banner = bof.image %}{% endunless %}
            {% if year != last_year %}
            {% unless forloop.first %}
        </div>
    </div>
            {% endunless %}
    <div class="bofx-year-group" data-year="{{ year }}">
        <div class="bofx-year-rail">
            <span class="bofx-year-label">{{ year }}</span>
        </div>
        <div class="bofx-grid">
            {% assign last_year = year %}
            {% endif %}

            <a class="bofx-card" href="{{ bof.url }}" data-series="{{ series }}" data-aos="fade-up">
                <div class="bofx-card-cover{% if banner != "" %} bofx-card-cover-photo{% endif %}">
                    {% if banner == "" %}<span class="bofx-card-year">{{ year }}</span>{% endif %}
                    {% if banner != "" %}
                    <img class="bofx-card-photo" src="{{ banner }}" alt="{{ bof.title }} announcement" loading="lazy" />
                    {% elsif bof.conference_logo %}
                    <div class="bofx-card-logo"><img src="{{ bof.conference_logo }}" alt="{{ series }} {{ year }} logo" loading="lazy" /></div>
                    {% else %}
                    <div class="bofx-card-logo bofx-logo-text">{{ series }} {{ year }}</div>
                    {% endif %}
                </div>
                <div class="bofx-card-body">
                    <div class="bofx-tags">
                        <span class="bofx-tag bofx-tag-{{ series | downcase }}">{{ bof.title | remove: " BoF" | remove: " Data Streaming" }}</span>
                        {% if bof.title contains "Streaming" %}<span class="bofx-tag bofx-tag-track">Data Streaming</span>{% endif %}
                    </div>
                    <h3>{{ bof.subtitle | default: bof.title }}</h3>
                    <div class="bofx-card-foot">
                        <span class="bofx-card-time"><i class="bi bi-calendar-event"></i>{{ bof.event_date | split: " - " | last }}</span>
                        <span class="bofx-card-link">View details <i class="bi bi-arrow-right"></i></span>
                    </div>
                </div>
            </a>

            {% if forloop.last %}
        </div>
    </div>
            {% endif %}
            {% endfor %}
        </div>

        <p class="bofx-empty" hidden>No sessions match that filter yet.</p>
    </div>
</section>

<script>
    (function () {
        var countdowns = document.querySelectorAll('.bofx-countdown');
        countdowns.forEach(function (el) {
            var target = new Date(el.getAttribute('data-bof-date') + 'T00:00:00');
            if (isNaN(target)) { return; }
            var days = Math.ceil((target - new Date()) / 86400000);
            if (days > 1) {
                el.innerHTML = '<strong>' + days + '</strong><span>days to go</span>';
            } else if (days === 1) {
                el.innerHTML = '<strong>1</strong><span>day to go</span>';
            } else if (days === 0) {
                el.innerHTML = '<strong>Today</strong><span>see you there</span>';
            }
        });

        var buttons = document.querySelectorAll('.bofx-filter');
        var cards = document.querySelectorAll('.bofx-card');
        var groups = document.querySelectorAll('.bofx-year-group');
        var empty = document.querySelector('.bofx-empty');

        buttons.forEach(function (btn) {
            btn.addEventListener('click', function () {
                var filter = btn.getAttribute('data-filter');
                buttons.forEach(function (b) { b.classList.toggle('is-active', b === btn); });
                cards.forEach(function (card) {
                    var match = filter === 'all' || card.getAttribute('data-series') === filter;
                    card.hidden = !match;
                });
                var visible = 0;
                groups.forEach(function (group) {
                    var shown = group.querySelectorAll('.bofx-card:not([hidden])').length;
                    group.hidden = shown === 0;
                    visible += shown;
                });
                if (empty) { empty.hidden = visible !== 0; }
            });
        });
    })();
</script>