diff --git a/TODO.md b/TODO.md
index be17902..6da598b 100644
--- a/TODO.md
+++ b/TODO.md
@@ -1,5 +1,32 @@
 # To do (Steam Machine edition)
 
+## In progress (2026-09-27)
+
+1. **Finish the running build** (`f663ce8`+) on the Steam Machine
+   (`~/projects/steammachine-cachyos-live-iso`, log `~/projects/iso-build.log`;
+   the harmless `chown: missing operand` error at the end is expected).
+2. **Test install in the ISO VM** (`~/projects/iso-vm`): power it off, delete
+   `disk.qcow2` and `vars.fd` (run.sh recreates them), point `cachyos.iso` at
+   the new ISO, `run.sh install --fremont` as a user unit. Check:
+   - Hello's Install opens Calamares without the "testing ISO" message
+     (version-tag = CachyOS release);
+   - Calamares starts without the manual Boost fix;
+   - the "Setting up the Steam Machine (Steamify)" step runs;
+   - after reboot: `/var/log/steamify-install.log` (every component OK,
+     `exit: 0`), SDDM autologin into gamescope (black/looping in the VM is
+     expected; Ctrl+Alt+F3 for a console), first desktop login: Vapor layout,
+     single user's launcher, the app next to Hello.
+   Likely problem: in the chroot `uname -r` is the live kernel, so the LED
+   module load/check in `machine_enable` may fail although DKMS built for the
+   installed kernel. Make those checks tolerate a different running kernel.
+3. **Steamify PR**: `feat/defaults-mode` (2.6.0, `b948c20`) in
+   steamify-cachyos, pushed but no PR yet. Open it once the install test
+   passes; the user merges (never commit to main).
+4. **Test on the real Steam Machine** from a USB stick (gamescope, LEDs, CEC,
+   power-off) before calling the ISO usable.
+
+## Later
+
 - **Power-off fix in the live session.** Without it the Steam Machine starts
   again right after shutting down from the live ISO. Build
   `steamify-fremont-poweroff.ko` in `steamify-prepare.sh` against the headers
@@ -10,5 +37,14 @@
   `packages_desktop.x86_64` and set it as the live user's look and feel in
   `airootfs/etc/skel` (kdeglobals `LookAndFeelPackage`, no layout file, so
   Plasma lays out Vapor at the live login).
+- **Steamify options in the installer**: a Calamares page (netinstall-style
+  YAML or QML) listing Steamify's options; pass the ticked ids to
+  `steamify.sh --backend apply <ids>` instead of `--defaults`.
+- **Branding**: name the ISO file and live session "Steam Machine CachyOS"
+  (not plain `cachyos-*.iso`); check with the CachyOS team.
+- **Release**: a CI job that builds the ISO (privileged container, flags from
+  the steam-machine-iso skill) and hosts it (>2 GB, not a GitHub release asset).
 - **Drop the Boost 1.91 workaround** in `steamify-prepare.sh` once
   `cachyos-calamares-next` is rebuilt against the repos' Boost.
+
+Build and test details: the `steam-machine-iso` skill in steamify-cachyos-dev.