<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
<html lang="en" style='--code-editor-font: var(--default-mono-font, "GitLab Mono"), JetBrains Mono, Menlo, DejaVu Sans Mono, Liberation Mono, Consolas, Ubuntu Mono, Courier New, andale mono, lucida console, monospace;'>
<head>
<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
<title>
GitLab
</title>
<style data-premailer="ignore" type="text/css">
a { color: #1068bf; }
</style>
<style>img {
max-width: 100%; height: auto;
}
body {
font-size: .875rem;
}
body {
-webkit-text-shadow: hsla(0,0%,100%,.01) 0 0 1px;
}
body {
font-family: "GitLab Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Noto Sans",Ubuntu,Cantarell,"Helvetica Neue",sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji"; font-size: inherit;
}
</style>
</head>
<body style='font-size: inherit; -webkit-text-shadow: hsla(0,0%,100%,.01) 0 0 1px; font-family: "GitLab Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Noto Sans",Ubuntu,Cantarell,"Helvetica Neue",sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";'>
<div class="content">
<h3 style="margin-top: 20px; margin-bottom: 10px;">
Jochen Sprickerhof pushed to branch master at <a href="https://salsa.debian.org/reproducible-builds/reproducible-website">Reproducible Builds / reproducible-website</a>
</h3>
<h4 style="margin-top: 10px; margin-bottom: 10px;">
Commits:
</h4>
<ul>
<li>
<strong style="font-weight: 600;"><a href="https://salsa.debian.org/reproducible-builds/reproducible-website/-/commit/7e141852c0b9519934f6ddda34e79a37cbf9de3a">7e141852</a></strong>
<div>
<span> by Jochen Sprickerhof </span> <i> at 2026-09-03T20:57:41+02:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #3a383f; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Interview Jochen: fix wording, thanks Mattia and kp!
</pre>
</li>
</ul>
<h4 style="margin-top: 10px; margin-bottom: 10px;">
1 changed file:
</h4>
<ul>
<li class="file-stats">
<a href="#57f9f494f87298fd1a8a4e626010a825b72c1ab3">
_posts/2026-09-15-supporter-spotlight-jochen-sprickerhof.md
</a>
</li>
</ul>
<h4 style="margin-top: 10px; margin-bottom: 10px;">
Changes:
</h4>
<li id="57f9f494f87298fd1a8a4e626010a825b72c1ab3">
<a href="https://salsa.debian.org/reproducible-builds/reproducible-website/-/commit/7e141852c0b9519934f6ddda34e79a37cbf9de3a#57f9f494f87298fd1a8a4e626010a825b72c1ab3"><strong style="font-weight: 600;">_posts/2026-09-15-supporter-spotlight-jochen-sprickerhof.md</strong></a>
<hr style="overflow: hidden; border: 1px solid #dcdcde;">
<table class="code white" style="border-spacing: 0; border-collapse: collapse; width: auto; font-family: monospace; font-size: 90%;" bgcolor="#ffffff" width="100%" cellpadding="0" cellspacing="0">
<tr class="line_holder match" style="line-height: 1.6;">
<td class="diff-line-num unfold js-unfold old_line" data-linenumber="37" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="37" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">...</td>
<td class="line_content match" style="color: rgba(5,5,6,.24); padding: inherit;" bgcolor="#fbfafd">@@ -37,7 +37,7 @@ I started my Debian journey as a teenager, converting my school to Debian and se</td>
</tr>
<tr class="line_holder" style="line-height: 1.6;">
<td class="old_line diff-line-num" data-linenumber="37" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
37
</td>
<td class="new_line diff-line-num" data-linenumber="37" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
37
</td>
<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #3a383f; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'> <span class="line" data-lang="markdown"><span class="gs" style="font-weight: 600;">**Jochen:**</span></span>
</pre></td>
</tr>
<tr class="line_holder" style="line-height: 1.6;">
<td class="old_line diff-line-num" data-linenumber="38" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
38
</td>
<td class="new_line diff-line-num" data-linenumber="38" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
38
</td>
<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #3a383f; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'> <span class="line" data-lang="markdown">A recent example is <span class="p">[</span><span class="nv" style="color: #008080;">*metasnap.debian.net*</span><span class="p">](</span><span class="sx" style="color: #dd1144;">https://metasnap.debian.net</span><span class="p">)</span>. It is a 'meta archive' of</span>
</pre></td>
</tr>
<tr class="line_holder" style="line-height: 1.6;">
<td class="old_line diff-line-num" data-linenumber="39" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
39
</td>
<td class="new_line diff-line-num" data-linenumber="39" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
39
</td>
<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #3a383f; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'> <span class="line" data-lang="markdown"><span class="p">[</span><span class="nv" style="color: #008080;">*snapshot.debian.org*</span><span class="p">](</span><span class="sx" style="color: #dd1144;">https://snapshot.debian.org</span><span class="p">)</span> which is itself archive of all packages in Debian. But let</span>
</pre></td>
</tr>
<tr class="line_holder old" style="line-height: 1.6;">
<td class="old_line diff-line-num old" data-linenumber="40" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
40
</td>
<td class="new_line diff-line-num old" data-linenumber="40" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
</td>
<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 14px; color: #3a383f; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'>-<span class="line" data-lang="markdown">me explain it the other way round: with <span class="ge" style="font-style: italic;">*reproduce.debian.net*</span>, we try to reproduce the packages as they are distributed by the Debian archive. For that, we need the same build environment (compilers, libraries, build tools, etc) that was used by Debian back when the original package was compiled. Luckily, <span class="ge" style="font-style: italic;">*snapshot.debian.org*</span> has all those packages, but they are not easily accessible via <span class="ge" style="font-style: italic;">*apt*</span>, Debian's package manager. So, <span class="ge" style="font-style: italic;">*metasnap*</span> provides a mapping from a package name and version pair to the APT repo on <span class="ge" style="font-style: italic;">*snapshot.debian.org*</span> needed to download it from. It was created by <span class="sb" style="color: #dd1144;">`josch`</span> some time ago, and i<span class="idiff left right deletion" style="background-color: #fac5cd;">s an</span> awesome work. But when we tried to reproduce more and more packages on <span class="ge" style="font-style: italic;">*reproduce.debian.net*</span>, we found that some were missing packages from the build environment โ even though they where visible on <span class="ge" style="font-style: italic;">*snapshot.debian.org*</span>. We found that <span class="ge" style="font-style: italic;">*metasnap*</span> excluded some archive areas because they where not expected to be needed. Reimporting all the data took more than two months and surfaced a couple more flaws.</span>
</pre></td>
</tr>
<tr class="line_holder new" style="line-height: 1.6;">
<td class="old_line diff-line-num new" data-linenumber="41" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
</td>
<td class="new_line diff-line-num new" data-linenumber="40" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
40
</td>
<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 14px; color: #3a383f; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'>+<span class="line" data-lang="markdown">me explain it the other way round: with <span class="ge" style="font-style: italic;">*reproduce.debian.net*</span>, we try to reproduce the packages as they are distributed by the Debian archive. For that, we need the same build environment (compilers, libraries, build tools, etc) that was used by Debian back when the original package was compiled. Luckily, <span class="ge" style="font-style: italic;">*snapshot.debian.org*</span> has all those packages, but they are not easily accessible via <span class="ge" style="font-style: italic;">*apt*</span>, Debian's package manager. So, <span class="ge" style="font-style: italic;">*metasnap*</span> provides a mapping from a package name and version pair to the APT repo on <span class="ge" style="font-style: italic;">*snapshot.debian.org*</span> needed to download it from. It was created by <span class="sb" style="color: #dd1144;">`josch`</span> some time ago, and i<span class="idiff left right addition" style="background-color: #c7f0d2;">t's</span> awesome work. But when we tried to reproduce more and more packages on <span class="ge" style="font-style: italic;">*reproduce.debian.net*</span>, we found that some were missing packages from the build environment โ even though they where visible on <span class="ge" style="font-style: italic;">*snapshot.debian.org*</span>. We found that <span class="ge" style="font-style: italic;">*metasnap*</span> excluded some archive areas because they where not expected to be needed. Reimporting all the data took more than two months and surfaced a couple more flaws.</span>
</pre></td>
</tr>
<tr class="line_holder" style="line-height: 1.6;">
<td class="old_line diff-line-num" data-linenumber="41" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
41
</td>
<td class="new_line diff-line-num" data-linenumber="41" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
41
</td>
<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #3a383f; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'> <span class="line" data-lang="markdown"></span>
</pre></td>
</tr>
<tr class="line_holder" style="line-height: 1.6;">
<td class="old_line diff-line-num" data-linenumber="42" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
42
</td>
<td class="new_line diff-line-num" data-linenumber="42" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
42
</td>
<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #3a383f; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'> <span class="line" data-lang="markdown">With this fixed, we were able to build more packages, only to find out that <span class="ge" style="font-style: italic;">*metasnap*</span> also needs better support for version numbers. Luckily we were able to rewrite the data in a day instead of starting the import again.</span>
</pre></td>
</tr>
<tr class="line_holder" style="line-height: 1.6;">
<td class="old_line diff-line-num" data-linenumber="43" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
43
</td>
<td class="new_line diff-line-num" data-linenumber="43" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
43
</td>
<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #3a383f; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'> <span class="line" data-lang="markdown"></span>
</pre></td>
</tr>
</table>
<br>
</li>
</div>
<div class="footer" style="margin-top: 10px;">
<p style="font-size: small; color: #626168;">
โ
<br>
<a href="https://salsa.debian.org/reproducible-builds/reproducible-website/-/commit/7e141852c0b9519934f6ddda34e79a37cbf9de3a">View it on GitLab</a>.
<br>
You're receiving this email because of your account on <a target="_blank" rel="noopener noreferrer" href="https://salsa.debian.org">salsa.debian.org</a>. <a href="https://salsa.debian.org/-/profile/notifications" target="_blank" rel="noopener noreferrer" class="mng-notif-link">Manage all notifications</a> ยท <a href="https://salsa.debian.org/help" target="_blank" rel="noopener noreferrer" class="help-link">Help</a>
<span style="color: transparent; font-size: 0; display: none; overflow: hidden; opacity: 0; width: 0; height: 0; max-width: 0; max-height: 0;">
Notification message regarding https://salsa.debian.org/reproducible-builds/reproducible-website/-/commit/7e141852c0b9519934f6ddda34e79a37cbf9de3a at 1788461871
</span>
<script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","action":{"@type":"ViewAction","name":"View Commit","url":"https://salsa.debian.org/reproducible-builds/reproducible-website/-/commit/7e141852c0b9519934f6ddda34e79a37cbf9de3a"}}</script>
</p>
</div>
</body>
</html>