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    <a class="brand" href="index.html">Igor Steinmacher</a>
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      <a href="index.html#research">Research</a>
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<h2>Software</h2>
<p class="lead">Tools built by my group and collaborators. Research that ships:
each of these exists to put our findings about onboarding, retention, and
sustainability into the hands of real communities and classrooms.</p>

<div class="sw">
  <h3>OSS-Doorway</h3>
  <p>A gamified GitHub environment that scaffolds students through the open source
  contribution process — quests, XP, levels, and a bot that gives real-time feedback
  as students submit pull requests, write documentation, and solve issues. Evaluated
  in multiple classrooms; boosts self-efficacy and GitHub familiarity. Part of the
  NSF HSI project.</p>
  <div class="links">
    <a href="https://github.com/caiton1/OSS-Doorway" target="_blank" rel="noopener">github</a>
    <a href="https://arxiv.org/abs/2502.07986" target="_blank" rel="noopener">paper (CSEE&amp;T 2025)</a>
    <a href="https://news.nau.edu/oss-doorway" target="_blank" rel="noopener">in the news</a>
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<div class="sw">
  <h3>FLOSScoach</h3>
  <p>A portal that helps newcomers overcome the most common barriers to joining
  open source communities, organizing project information in a standardized way
  grounded in our barriers research (IST 2015, ICSE 2016). The original tool from
  my PhD work — still the reference point for newcomer-support portals.</p>
  <div class="links">
    <a href="http://www.flosscoach.com" target="_blank" rel="noopener">flosscoach.com</a>
    <a href="https://github.com/RESHAPELab/flosscoach" target="_blank" rel="noopener">github</a>
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<div class="sw">
  <h3>DisTrac</h3>
  <p>Forecasts core-developer inactivity in open source projects from contribution
  rhythms, building on our EMSE 2022 inactivity study. Developed with Fabio Calefato
  and colleagues at the University of Bari. Tool paper in submission (ICSME 2026
  Data and Tools track).</p>
  <div class="links">
    <a href="https://github.com/RESHAPELab" target="_blank" rel="noopener">github (RESHAPELab)</a>
  </div>
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<div class="sw">
  <h3>SIGIL</h3>
  <p>[One-line description here — see note below.]</p>
  <div class="links">
    <a href="https://github.com/RESHAPELab" target="_blank" rel="noopener">github (RESHAPELab)</a>
  </div>
</div>

<div class="sw">
  <h3>GiveMeLabeledIssues</h3>
  <p>An open source issue-recommendation system that matches contributors to issues
  needing their skills, based on API-domain labeling (MSR 2023).</p>
  <div class="links">
    <a href="https://github.com/RESHAPELab" target="_blank" rel="noopener">github (RESHAPELab)</a>
    <a href="https://doi.org/10.1109/MSR59073.2023.00061" target="_blank" rel="noopener">paper (MSR 2023)</a>
  </div>
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<div class="sw">
  <h3>CommUnityBuddy</h3>
  <p>A conversational agent that mentors newcomer developers in open source
  communities, funded by the Alfred P. Sloan Foundation. In active development
  with OSS community partners.</p>
  <div class="links">
    <a href="https://github.com/RESHAPELab" target="_blank" rel="noopener">github (RESHAPELab)</a>
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