Issue 25175 reproduction, 2026-10-26
Environment: Ubuntu Linux x86_64, Xvfb X11, D-Bus, unlocked GNOME libsecret; --no-sandbox --disable-gpu. Reporter uses Arch/KDE/kwallet6; that environment was not tested.
Exact reported AppImage downloaded and extracted; AppRun used (FUSE mounting was not exercised).
Current main: f88b33a16d
Each launch observed for 20-25 seconds, then terminated by owned process group.
Populated fixture: v0.1.2-created database (migration 67), synthetic 10 projects and 100 stopped threads, no active work; nightly migrated it through 69. Not a copy of reporter state.

=== fresh ===
[1577310:1026/030052.058759:ERROR:electron/shell/common/node_bindings.cc:492] Most NODE_OPTIONs are not supported in packaged apps. See documentation for more details.
[1577310:1026/030052.551502:ERROR:dbus/object_proxy.cc:572] Failed to call method: org.freedesktop.login1.Manager.Inhibit: object_path= /org/freedesktop/login1: org.freedesktop.DBus.Error.AccessDenied: Permission denied
[03:00:52.929] INFO (#1): runtime logging configured
  scope: desktop
  runId: bbe51832331f
  component: desktop-startup
  logDir: /tmp/issue-25175-retry/fresh/userdata/logs
[03:00:52.930] INFO (#1): linux password store configured
  scope: desktop
  runId: bbe51832331f
  component: desktop-startup
  passwordStore: gnome-libsecret
  xdgCurrentDesktop: null
  xdgSessionDesktop: null
[03:00:52.934] INFO (#1): app ready
  scope: desktop
  runId: bbe51832331f
  component: desktop-startup
[03:00:52.934] INFO (#1): safe storage ready
  scope: desktop
  runId: bbe51832331f
  component: desktop-startup
  backend: gnome_libsecret
[03:00:52.956] WARN (#1): desktop MIME cache refresh failed
  scope: desktop
  runId: bbe51832331f
  component: desktop-linux-url-handler
  applicationsDir: /home/ubuntu/.local/share/applications
  message: Failed to refresh the desktop MIME cache at /home/ubuntu/.local/share/applications.
[03:00:52.964] WARN (#1): URL scheme handler registration failed
  scope: desktop
  runId: bbe51832331f
  component: desktop-linux-url-handler
  scheme: t3code
  step: set-default-handler
  message: Failed to register the t3code:// URL handler (step: set-default-handler).
[03:00:52.964] INFO (#1): bootstrap start
  scope: desktop
  runId: bbe51832331f
  component: desktop-bootstrap
[03:00:52.988] INFO (#1): bootstrap ipc handlers registered
  scope: desktop
  runId: bbe51832331f
  component: desktop-bootstrap
[03:00:53.002] INFO (#1): selected backend port via sequential scan
  scope: desktop
  runId: bbe51832331f
  component: desktop-bootstrap
  port: 3774
  startPort: 3773
[03:00:53.004] INFO (#1): bootstrap resolved backend endpoint
  scope: desktop
  runId: bbe51832331f
  component: desktop-bootstrap
  baseUrl: http://127.0.0.1:3774/
[03:00:53.007] INFO (#1): installed t3 launcher
  scope: desktop
  runId: bbe51832331f
  component: desktop-cli-shim
  shimPath: /tmp/issue-25175-retry/fresh/bin/t3
[03:00:53.008] INFO (#1): bootstrap backend start requested
  scope: desktop
  runId: bbe51832331f
  component: desktop-bootstrap
[03:00:53.035] INFO (#1): desktop app control socket ready
  scope: desktop
  runId: bbe51832331f
  component: desktop-bootstrap
[03:00:55.424] INFO (#187): backend ready
  scope: desktop
  runId: bbe51832331f
  component: desktop-window
  source: http
  url: http://127.0.0.1:3774/
[03:00:55.522] INFO (#187): main window created
  scope: desktop
  runId: bbe51832331f
  component: desktop-window

=== stable ===
[1578659:1026/030203.081029:ERROR:electron/shell/common/node_bindings.cc:492] Most NODE_OPTIONs are not supported in packaged apps. See documentation for more details.
[1578659:1026/030203.553142:ERROR:dbus/object_proxy.cc:572] Failed to call method: org.freedesktop.login1.Manager.Inhibit: object_path= /org/freedesktop/login1: org.freedesktop.DBus.Error.AccessDenied: Permission denied
[03:02:04.071] INFO (#1): runtime logging configured
  scope: desktop
  runId: 29969ccbe68a
  component: desktop-startup
  logDir: /tmp/issue-25175-retry/populated/userdata/logs
[03:02:04.073] INFO (#1): linux password store configured
  scope: desktop
  runId: 29969ccbe68a
  component: desktop-startup
  passwordStore: gnome-libsecret
  xdgCurrentDesktop: null
  xdgSessionDesktop: null
[03:02:04.075] INFO (#1): app ready
  scope: desktop
  runId: 29969ccbe68a
  component: desktop-startup
[03:02:04.076] INFO (#1): safe storage ready
  scope: desktop
  runId: 29969ccbe68a
  component: desktop-startup
  backend: gnome_libsecret
[03:02:04.095] WARN (#1): desktop MIME cache refresh failed
  scope: desktop
  runId: 29969ccbe68a
  component: desktop-linux-url-handler
  applicationsDir: /home/ubuntu/.local/share/applications
  message: Failed to refresh the desktop MIME cache at /home/ubuntu/.local/share/applications.
[03:02:04.106] WARN (#1): URL scheme handler registration failed
  scope: desktop
  runId: 29969ccbe68a
  component: desktop-linux-url-handler
  scheme: t3code
  step: set-default-handler
  message: Failed to register the t3code:// URL handler (step: set-default-handler).
[03:02:04.106] INFO (#1): bootstrap start
  scope: desktop
  runId: 29969ccbe68a
  component: desktop-bootstrap
[03:02:04.126] INFO (#1): bootstrap ipc handlers registered
  scope: desktop
  runId: 29969ccbe68a
  component: desktop-bootstrap
[03:02:04.140] INFO (#1): selected backend port via sequential scan
  scope: desktop
  runId: 29969ccbe68a
  component: desktop-bootstrap
  port: 3774
  startPort: 3773
[03:02:04.141] INFO (#1): bootstrap resolved backend endpoint
  scope: desktop
  runId: 29969ccbe68a
  component: desktop-bootstrap
  baseUrl: http://127.0.0.1:3774/
[03:02:04.147] INFO (#1): installed t3 launcher
  scope: desktop
  runId: 29969ccbe68a
  component: desktop-cli-shim
  shimPath: /tmp/issue-25175-retry/populated/bin/t3
[03:02:04.148] INFO (#1): bootstrap backend start requested
  scope: desktop
  runId: 29969ccbe68a
  component: desktop-bootstrap
[03:02:04.187] INFO (#1): desktop app control socket ready
  scope: desktop
  runId: 29969ccbe68a
  component: desktop-bootstrap
[03:02:06.746] INFO (#187): backend ready
  scope: desktop
  runId: 29969ccbe68a
  component: desktop-window
  source: http
  url: http://127.0.0.1:3774/
[03:02:06.886] INFO (#187): main window created
  scope: desktop
  runId: 29969ccbe68a
  component: desktop-window
[03:02:22.905] INFO (#569): before-quit received
  scope: desktop
  runId: 29969ccbe68a
  component: desktop-lifecycle

=== nightly-upgrade ===
[1579789:1026/030237.632147:ERROR:electron/shell/common/node_bindings.cc:492] Most NODE_OPTIONs are not supported in packaged apps. See documentation for more details.
[1579789:1026/030238.086603:ERROR:dbus/object_proxy.cc:572] Failed to call method: org.freedesktop.login1.Manager.Inhibit: object_path= /org/freedesktop/login1: org.freedesktop.DBus.Error.AccessDenied: Permission denied
[03:02:38.567] INFO (#1): runtime logging configured
  scope: desktop
  runId: e228a31aaa8f
  component: desktop-startup
  logDir: /tmp/issue-25175-retry/populated/userdata/logs
[03:02:38.570] INFO (#1): linux password store configured
  scope: desktop
  runId: e228a31aaa8f
  component: desktop-startup
  passwordStore: gnome-libsecret
  xdgCurrentDesktop: null
  xdgSessionDesktop: null
[03:02:38.573] INFO (#1): app ready
  scope: desktop
  runId: e228a31aaa8f
  component: desktop-startup
[03:02:38.573] INFO (#1): safe storage ready
  scope: desktop
  runId: e228a31aaa8f
  component: desktop-startup
  backend: gnome_libsecret
[03:02:38.596] WARN (#1): desktop MIME cache refresh failed
  scope: desktop
  runId: e228a31aaa8f
  component: desktop-linux-url-handler
  applicationsDir: /home/ubuntu/.local/share/applications
  message: Failed to refresh the desktop MIME cache at /home/ubuntu/.local/share/applications.
[03:02:38.605] WARN (#1): URL scheme handler registration failed
  scope: desktop
  runId: e228a31aaa8f
  component: desktop-linux-url-handler
  scheme: t3code
  step: set-default-handler
  message: Failed to register the t3code:// URL handler (step: set-default-handler).
[03:02:38.606] INFO (#1): bootstrap start
  scope: desktop
  runId: e228a31aaa8f
  component: desktop-bootstrap
[03:02:38.623] INFO (#1): bootstrap ipc handlers registered
  scope: desktop
  runId: e228a31aaa8f
  component: desktop-bootstrap
[03:02:38.629] INFO (#1): selected backend port via sequential scan
  scope: desktop
  runId: e228a31aaa8f
  component: desktop-bootstrap
  port: 3774
  startPort: 3773
[03:02:38.630] INFO (#1): bootstrap resolved backend endpoint
  scope: desktop
  runId: e228a31aaa8f
  component: desktop-bootstrap
  baseUrl: http://127.0.0.1:3774/
[03:02:38.634] INFO (#1): installed t3 launcher
  scope: desktop
  runId: e228a31aaa8f
  component: desktop-cli-shim
  shimPath: /tmp/issue-25175-retry/populated/bin/t3
[03:02:38.635] INFO (#1): bootstrap backend start requested
  scope: desktop
  runId: e228a31aaa8f
  component: desktop-bootstrap
[03:02:38.662] INFO (#1): desktop app control socket ready
  scope: desktop
  runId: e228a31aaa8f
  component: desktop-bootstrap
[03:02:40.798] INFO (#189): backend ready
  scope: desktop
  runId: e228a31aaa8f
  component: desktop-window
  source: http
  url: http://127.0.0.1:3774/
[03:02:40.879] INFO (#189): main window created
  scope: desktop
  runId: e228a31aaa8f
  component: desktop-window

=== main-fresh ===
[1580371:1026/030239.564354:ERROR:dbus/object_proxy.cc:572] Failed to call method: org.freedesktop.login1.Manager.Inhibit: object_path= /org/freedesktop/login1: org.freedesktop.DBus.Error.AccessDenied: Permission denied
[03:02:39.992] INFO (#1): runtime logging configured
  scope: desktop
  runId: 6b63b907b205
  component: desktop-startup
  logDir: /tmp/issue-25175-retry/main-fresh/userdata/logs
[03:02:39.994] INFO (#1): linux password store configured
  scope: desktop
  runId: 6b63b907b205
  component: desktop-startup
  passwordStore: gnome-libsecret
  xdgCurrentDesktop: null
  xdgSessionDesktop: null
[03:02:39.995] INFO (#1): app ready
  scope: desktop
  runId: 6b63b907b205
  component: desktop-startup
[03:02:39.996] INFO (#1): safe storage ready
  scope: desktop
  runId: 6b63b907b205
  component: desktop-startup
  backend: gnome_libsecret
[03:02:40.002] INFO (#1): bootstrap start
  scope: desktop
  runId: 6b63b907b205
  component: desktop-bootstrap
[03:02:40.018] INFO (#1): bootstrap ipc handlers registered
  scope: desktop
  runId: 6b63b907b205
  component: desktop-bootstrap
[03:02:40.040] INFO (#1): selected backend port via sequential scan
  scope: desktop
  runId: 6b63b907b205
  component: desktop-bootstrap
  port: 3775
  startPort: 3773
[03:02:40.041] INFO (#1): bootstrap resolved backend endpoint
  scope: desktop
  runId: 6b63b907b205
  component: desktop-bootstrap
  baseUrl: http://127.0.0.1:3775/
[03:02:40.045] INFO (#1): bootstrap backend start requested
  scope: desktop
  runId: 6b63b907b205
  component: desktop-bootstrap
[03:02:40.090] INFO (#1): desktop app control socket ready
  scope: desktop
  runId: 6b63b907b205
  component: desktop-bootstrap
[03:02:43.435] INFO (#187): backend ready
  scope: desktop
  runId: 6b63b907b205
  component: desktop-window
  source: http
  url: http://127.0.0.1:3775/
[03:02:43.588] INFO (#187): main window created
  scope: desktop
  runId: 6b63b907b205
  component: desktop-window

=== main-populated ===
[1581568:1026/030307.012318:ERROR:dbus/object_proxy.cc:572] Failed to call method: org.freedesktop.login1.Manager.Inhibit: object_path= /org/freedesktop/login1: org.freedesktop.DBus.Error.AccessDenied: Permission denied
[03:03:07.541] INFO (#1): runtime logging configured
  scope: desktop
  runId: 606a791f92c2
  component: desktop-startup
  logDir: /tmp/issue-25175-retry/main-populated/userdata/logs
[03:03:07.543] INFO (#1): linux password store configured
  scope: desktop
  runId: 606a791f92c2
  component: desktop-startup
  passwordStore: gnome-libsecret
  xdgCurrentDesktop: null
  xdgSessionDesktop: null
[03:03:07.545] INFO (#1): app ready
  scope: desktop
  runId: 606a791f92c2
  component: desktop-startup
[03:03:07.545] INFO (#1): safe storage ready
  scope: desktop
  runId: 606a791f92c2
  component: desktop-startup
  backend: gnome_libsecret
[03:03:07.551] INFO (#1): bootstrap start
  scope: desktop
  runId: 606a791f92c2
  component: desktop-bootstrap
[03:03:07.569] INFO (#1): bootstrap ipc handlers registered
  scope: desktop
  runId: 606a791f92c2
  component: desktop-bootstrap
[03:03:07.579] INFO (#1): selected backend port via sequential scan
  scope: desktop
  runId: 606a791f92c2
  component: desktop-bootstrap
  port: 3774
  startPort: 3773
[03:03:07.579] INFO (#1): bootstrap resolved backend endpoint
  scope: desktop
  runId: 606a791f92c2
  component: desktop-bootstrap
  baseUrl: http://127.0.0.1:3774/
[03:03:07.585] INFO (#1): bootstrap backend start requested
  scope: desktop
  runId: 606a791f92c2
  component: desktop-bootstrap
[03:03:07.610] INFO (#1): desktop app control socket ready
  scope: desktop
  runId: 606a791f92c2
  component: desktop-bootstrap
[03:03:09.513] INFO (#191): backend ready
  scope: desktop
  runId: 606a791f92c2
  component: desktop-window
  source: http
  url: http://127.0.0.1:3774/
[03:03:09.594] INFO (#191): main window created
  scope: desktop
  runId: 606a791f92c2
  component: desktop-window