BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//pretalx//pretalx.coscup.org//coscup-2026//speaker//JB8TBF
BEGIN:VTIMEZONE
TZID:CST
BEGIN:STANDARD
DTSTART:20000101T000000
RRULE:FREQ=YEARLY;BYMONTH=1
TZNAME:CST
TZOFFSETFROM:+0800
TZOFFSETTO:+0800
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
UID:pretalx-coscup-2026-VJFBML@pretalx.coscup.org
DTSTART;TZID=CST:20260808T103000
DTEND;TZID=CST:20260808T110000
DESCRIPTION:Every day\, millions of users type `apt update` and `apt instal
 l` and software appears on their system as if by magic. Behind this simple
  command lies a sophisticated infrastructure of cryptographic safeguards\,
  precise archive organization\, and rigorous human review. This talk is an
  invitation to look under the hood and trace the full lifecycle of an Ubun
 tu package\, from the central archive to the local machine.\n\nThe journey
  begins with an exploration of the repository architecture. We will break 
 down how your system's repository configuration maps to a structured archi
 ve where metadata and installable packages are organized separately. We wi
 ll discuss how Ubuntu manages change over a release's lifetime through dis
 tinct channels for security fixes\, stable updates\, and backported featur
 es\, and how the archive groups packages by the level of support and maint
 enance they receive.\n\nTrust is the backbone of this ecosystem. We will d
 emonstrate the "Chain of Trust" that ensures package authenticity\, illust
 rating how the system verifies that software is genuine and untampered wit
 h\, even when fetched over potentially untrusted network mirrors. This sec
 tion illustrates how a single signed file at the top anchors the trust for
  every package in the archive.\n\nFinally\, we will explore the human "gat
 ekeepers" of the ecosystem. We will demystify the procedural checks and ba
 lances\, such as the security auditing and stable release update processes
  that ensure software remains reliable long after a version is released.\n
 \nMore info: https://events.canonical.com/event/146/contributions/946/
DTSTAMP:20260713T132557Z
LOCATION:AU
SUMMARY:Beyond apt install: The Journey of an Ubuntu Package - Shishir Sube
 di
URL:https://pretalx.coscup.org/coscup-2026/talk/VJFBML/
END:VEVENT
END:VCALENDAR