[BUG] Nixos: caelestia cli error when used as hm module with shell

[nappairam]

Step 1. Before you submit

• I have read the above instructions and am sure that this is supposed to be posted here.
• I've successfully updated to the latest versions following the updating guide.
• I've successfully updated the system packages to the latest.
• I've ticked the checkboxes without reading their contents

Step 2. Version info

Version info

❯ caelestia -v
Packages: not on Arch
 
fatal: not a git repository: '/home/maari/.config/.git'
Caelestia: not installed
 
Quickshell: not in PATH
 
Local copy of shell found:
    Unable to determine last merged upstream commit.
fatal: not a git repository: '/home/maari/.config/quickshell/caelestia/.git'
Traceback (most recent call last):
  File "/nix/store/ghb920w5bhjvlrdg9b2ha75gz23vbch5-caelestia-cli-db1e0da5bbd259f1218b4ae54d0327b0c4a46f78/bin/.caelestia-wrapped", line 9, in <module>
    sys.exit(main())
             ~~~~^^
  File "/nix/store/ghb920w5bhjvlrdg9b2ha75gz23vbch5-caelestia-cli-db1e0da5bbd259f1218b4ae54d0327b0c4a46f78/lib/python3.13/site-packages/caelestia/__init__.py", line 8, in main
    print_version()
    ~~~~~~~~~~~~~^^
  File "/nix/store/ghb920w5bhjvlrdg9b2ha75gz23vbch5-caelestia-cli-db1e0da5bbd259f1218b4ae54d0327b0c4a46f78/lib/python3.13/site-packages/caelestia/utils/version.py", line 64, in print_version
    shell_ver = subprocess.check_output(
        ["git", "--git-dir", local_shell_dir / ".git", "rev-list", "--format=%B", "--max-count=1", "HEAD"],
        text=True,
    )
  File "/nix/store/iyff8129iampdw13nlfqalzhxy8y1hi9-python3-3.13.6/lib/python3.13/subprocess.py", line 472, in check_output
    return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
           ~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
               **kwargs).stdout
               ^^^^^^^^^
  File "/nix/store/iyff8129iampdw13nlfqalzhxy8y1hi9-python3-3.13.6/lib/python3.13/subprocess.py", line 577, in run
    raise CalledProcessError(retcode, process.args,
                             output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['git', '--git-dir', PosixPath('/home/maari/.config/quickshell/caelestia/.git'), 'rev-list', '--format=%B', '--max-count=1', 'HEAD']' returned non-zero exit status 128.
 

Step 3. Describe the issue

I am using caelestia shell as a home manager module
https://gitlab.com/mariappan/nix-config/-/blob/main/modules/homemanager/linux/features/caelestia.nix
https://gitlab.com/mariappan/nix-config/-/blob/main/overlays/default.nix#L19

It used to work perfectly until last week. This week when I tried to update flake, it started failing.
I have attached the logs which may be useful. please let me know if any other details required.

Logs

❯ caelestia shell ipc call drawers toggle launcher
Traceback (most recent call last):
  File "/nix/store/ghb920w5bhjvlrdg9b2ha75gz23vbch5-caelestia-cli-db1e0da5bbd259f1218b4ae54d0327b0c4a46f78/bin/.caelestia-wrapped", line 9, in <module>
    sys.exit(main())
             ~~~~^^
  File "/nix/store/ghb920w5bhjvlrdg9b2ha75gz23vbch5-caelestia-cli-db1e0da5bbd259f1218b4ae54d0327b0c4a46f78/lib/python3.13/site-packages/caelestia/__init__.py", line 10, in main
    args.cls(args).run()
    ~~~~~~~~~~~~~~~~~~^^
  File "/nix/store/ghb920w5bhjvlrdg9b2ha75gz23vbch5-caelestia-cli-db1e0da5bbd259f1218b4ae54d0327b0c4a46f78/lib/python3.13/site-packages/caelestia/subcommands/shell.py", line 25, in run
    self.message(*self.args.message)
    ~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
  File "/nix/store/ghb920w5bhjvlrdg9b2ha75gz23vbch5-caelestia-cli-db1e0da5bbd259f1218b4ae54d0327b0c4a46f78/lib/python3.13/site-packages/caelestia/subcommands/shell.py", line 60, in message
    print(self.shell("ipc", "call", *args), end="")
          ~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^
  File "/nix/store/ghb920w5bhjvlrdg9b2ha75gz23vbch5-caelestia-cli-db1e0da5bbd259f1218b4ae54d0327b0c4a46f78/lib/python3.13/site-packages/caelestia/subcommands/shell.py", line 41, in shell
    return subprocess.check_output(["caelestia-shell", *args], text=True)
           ~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/nix/store/iyff8129iampdw13nlfqalzhxy8y1hi9-python3-3.13.6/lib/python3.13/subprocess.py", line 472, in check_output
    return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
           ~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
               **kwargs).stdout
               ^^^^^^^^^
  File "/nix/store/iyff8129iampdw13nlfqalzhxy8y1hi9-python3-3.13.6/lib/python3.13/subprocess.py", line 577, in run
    raise CalledProcessError(retcode, process.args,
                             output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['caelestia-shell', 'ipc', 'call', 'ipc', 'call', 'drawers', 'toggle', 'launcher']' returned non-zero exit status 255.


❯ caelestia-shell ipc call lock lock
No running instances for "/nix/store/jas49nilf6qj95fi2kkpw25jhax2p4c3-caelestia-shell-1.0.0/share/caelestia-shell/shell.qml"


❯ readlink -f /etc/profiles/per-user/maari/bin/caelestia-shell
/nix/store/jas49nilf6qj95fi2kkpw25jhax2p4c3-caelestia-shell-1.0.0/bin/caelestia-shell


❯ ls /nix/store/jas49nilf6qj95fi2kkpw25jhax2p4c3-caelestia-shell-1.0.0/share/caelestia-shell/
 assets   components   config   LICENSE   modules   services   shell.qml   utils


❯ ps aux | grep quickshell
maari      60746  3.0  0.9 1628776 313912 ?      Ssl  13:16   0:01 /nix/store/2dn8dknrfx6ajaczxdfrrbh9fr86aflr-quickshell-wrapped-0.2.0/bin/quickshell -p /nix/store/6bc5dijwmvqxg41jgldbbmmzz3pqby4w-caelestia-shell-54921ee354827aac71a435ad9fe903b8667901fc/share/caelestia-shell
maari      62254  0.0  0.0   6812  2876 pts/2    S+   13:17   0:00 /nix/store/5ygilvgz6l47fw3x5ylb0cz1afgc3737-gnugrep-3.12/bin/grep --color=auto quickshell

Reminder

• I agree that it's usually impossible for others to help me without my logs.

[nappairam]

ping @Markus328 @anders130
Seems you guys are using it as nixos homemanager. Pinging just in case you have faced this before and fixed it.

[anders130]

Haven't encountered this issue, sorry.
caelestia-shell ipc call lock lock work fine for me.
Just to confirm: Is caelestia-shell starting after hyprland or doesn't it start at all?
If it starts, can you run caelestia shell -l?

Also just in case it helps, if I run caelestia -v i get:

Packages: not on Arch

fatal: not a git repository: '/home/jesse/.config/.git'
Caelestia: not installed

Quickshell: not in PATH

And i can't run this:

caelestia shell ipc call drawers toggle launcher
Target not found.

but i can do this:

caelestia shell drawers toggle launcher

[Markus328]

ping @Markus328 @anders130
Seems you guys are using it as nixos homemanager. Pinging just in case you have faced this before and fixed it.

Yes, sorry but I've not updated my hm caelestia to the latest changes, I will test this quickly soon

[Markus328]

This error only appears if the shell running is not the same instance of the shell your caelestia-cli are referencing. Try this:

systemctl --user stop caelestia.service && caelestia-shell -d && caelestia shell drawers toggle launcher

If this works, probably there's a problem with your systemd service, stop it and reload home-manager again (it should start)

[nappairam]

Thanks for verifying @Markus328
Yes, Stopping systemd service and running it manually works properly.
All caelestia commands are working.

Still dont understand how it is messed up only for me. Cause I just use the home manager module and do not run systemd service manually

This is the systemd config file

❯ cat /home/maari/.config/systemd/user/caelestia.service;
[Install]
WantedBy=graphical-session.target

[Service]
Environment=QT_QPA_PLATFORM=wayland
ExecStart=/nix/store/6bc5dijwmvqxg41jgldbbmmzz3pqby4w-caelestia-shell-54921ee354827aac71a435ad9fe903b8667901fc/bin/caelestia-shell
Restart=on-failure
RestartSec=5s
Slice=session.slice
TimeoutStopSec=5s
Type=exec

[Unit]
After=graphical-session.target
Description=Caelestia Shell Service
PartOf=graphical-session.target

and this is the path to the caelestia-shell if I run manually and everything works:

❯ readlink -f /etc/profiles/per-user/maari/bin/caelestia-shell
/nix/store/jas49nilf6qj95fi2kkpw25jhax2p4c3-caelestia-shell-1.0.0/bin/caelestia-shell

[Markus328]

Thanks for verifying @Markus328 Yes, Stopping systemd service and running it manually works properly. All caelestia commands are working.

Still dont understand how it is messed up only for me. Cause I just use the home manager module and do not run systemd service manually

❯ cat /home/maari/.config/systemd/user/caelestia.service;
[Install]
WantedBy=graphical-session.target

[Service]
Environment=QT_QPA_PLATFORM=wayland
ExecStart=/nix/store/6bc5dijwmvqxg41jgldbbmmzz3pqby4w-caelestia-shell-54921ee354827aac71a435ad9fe903b8667901fc/bin/caelestia-shell
Restart=on-failure
RestartSec=5s
Slice=session.slice
TimeoutStopSec=5s
Type=exec

[Unit]
After=graphical-session.target
Description=Caelestia Shell Service
PartOf=graphical-session.target

I understood your problem, in your logs, you used the wrong command: caelestia shell ipc call ...

caelestia (CLI) doesn't requires the ipc call its only caelestia shell drawers toggle launcher. If using the caelestia-shell it does requires this.

[nappairam]

I think I messed up the commands in the error log.

To verify again, I tried to stop the manually started instance and tried to start systemd service.

Again I started to see the same issue. All caelestia cli commands started failing.

❯ caelestia shell drawers toggle launcher
❯ pkill quickshell
❯ systemctl --user start caelestia.service
❯ caelestia shell drawers toggle launcher
Traceback (most recent call last):
  File "/nix/store/ghb920w5bhjvlrdg9b2ha75gz23vbch5-caelestia-cli-db1e0da5bbd259f1218b4ae54d0327b0c4a46f78/bin/.caelestia-wrapped", line 9, in <module>
    sys.exit(main())
             ~~~~^^
  File "/nix/store/ghb920w5bhjvlrdg9b2ha75gz23vbch5-caelestia-cli-db1e0da5bbd259f1218b4ae54d0327b0c4a46f78/lib/python3.13/site-packages/caelestia/__init__.py", line 10, in main
    args.cls(args).run()
    ~~~~~~~~~~~~~~~~~~^^
  File "/nix/store/ghb920w5bhjvlrdg9b2ha75gz23vbch5-caelestia-cli-db1e0da5bbd259f1218b4ae54d0327b0c4a46f78/lib/python3.13/site-packages/caelestia/subcommands/shell.py", line 25, in run
    self.message(*self.args.message)
    ~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
  File "/nix/store/ghb920w5bhjvlrdg9b2ha75gz23vbch5-caelestia-cli-db1e0da5bbd259f1218b4ae54d0327b0c4a46f78/lib/python3.13/site-packages/caelestia/subcommands/shell.py", line 60, in message
    print(self.shell("ipc", "call", *args), end="")
          ~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^
  File "/nix/store/ghb920w5bhjvlrdg9b2ha75gz23vbch5-caelestia-cli-db1e0da5bbd259f1218b4ae54d0327b0c4a46f78/lib/python3.13/site-packages/caelestia/subcommands/shell.py", line 41, in shell
    return subprocess.check_output(["caelestia-shell", *args], text=True)
           ~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/nix/store/iyff8129iampdw13nlfqalzhxy8y1hi9-python3-3.13.6/lib/python3.13/subprocess.py", line 472, in check_output
    return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
           ~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
               **kwargs).stdout
               ^^^^^^^^^
  File "/nix/store/iyff8129iampdw13nlfqalzhxy8y1hi9-python3-3.13.6/lib/python3.13/subprocess.py", line 577, in run
    raise CalledProcessError(retcode, process.args,
                             output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['caelestia-shell', 'ipc', 'call', 'drawers', 'toggle', 'launcher']' returned non-zero exit status 255.
❯ caelestia-shell ipc call drawers toggle launcher
No running instances for "/nix/store/jas49nilf6qj95fi2kkpw25jhax2p4c3-caelestia-shell-1.0.0/share/caelestia-shell/shell.qml"
❯

[nappairam]

To further narrow down, path of caelestia-shell seems to be different in systemd service and the one in my HM profile bin

❯ cat /home/maari/.config/systemd/user/caelestia.service;
[Install]
WantedBy=graphical-session.target

[Service]
Environment=QT_QPA_PLATFORM=wayland
ExecStart=/nix/store/6bc5dijwmvqxg41jgldbbmmzz3pqby4w-caelestia-shell-54921ee354827aac71a435ad9fe903b8667901fc/bin/caelestia-shell

❯ readlink -f /etc/profiles/per-user/maari/bin/caelestia-shell
/nix/store/jas49nilf6qj95fi2kkpw25jhax2p4c3-caelestia-shell-1.0.0/bin/caelestia-shell

6bc5dijwmvqxg41jgldbbmmzz3pqby4w-caelestia-shell-54921ee354827aac71a435ad9fe903b8667901fc

vs

jas49nilf6qj95fi2kkpw25jhax2p4c3-caelestia-shell-1.0.0

[Markus328]

To further narrow down, path of caelestia-shell seems to be different in systemd service and the one in my HM profile bin

❯ cat /home/maari/.config/systemd/user/caelestia.service;
[Install]
WantedBy=graphical-session.target

[Service]
Environment=QT_QPA_PLATFORM=wayland
ExecStart=/nix/store/6bc5dijwmvqxg41jgldbbmmzz3pqby4w-caelestia-shell-54921ee354827aac71a435ad9fe903b8667901fc/bin/caelestia-shell

❯ readlink -f /etc/profiles/per-user/maari/bin/caelestia-shell
/nix/store/jas49nilf6qj95fi2kkpw25jhax2p4c3-caelestia-shell-1.0.0/bin/caelestia-shell

6bc5dijwmvqxg41jgldbbmmzz3pqby4w-caelestia-shell-54921ee354827aac71a435ad9fe903b8667901fc

vs

jas49nilf6qj95fi2kkpw25jhax2p4c3-caelestia-shell-1.0.0

It seems like you are adding the caelestia-shell package into your NixOs configuration.nix. Avoid this while using the hm module because the module already sets it in home.packages. Can you confirm me that?

Also, if you want to use any other patched or not caelestia-shell, you must set programs.caelestia.package or else this issue will always happen due to version mismatching

[nappairam]

I did not add the package into nixos system package. Or atleast I was not trying to and made something stupid.
I just include the caelesia package in the pkgs using overlay and then try to use the package in programs.caelestia.package.
But I dont have any patches at the moment.

So I removed these overlay addition and custom package in home manager module configuration.
Even then it is still the same

❯ rg caelestia
libx/default.nix
66:      inputs.caelestia-shell.homeManagerModules.default

flake.nix
38:    caelestia-shell = {
39:      url = "github:caelestia-dots/shell";

dotfiles/hypr/hyprland/keybinds.conf
2:$lock = caelestia shell lock lock
3:$menu = caelestia shell drawers toggle launcher
14:bind = $mainMod+SHIFT, r, exec, systemctl --user restart caelestia.service
20:bind = $mainMod+SHIFT, d, exec, caelestia shell drawers toggle dashboard
21:bind = $mainMod+SHIFT, q, exec, caelestia shell drawers toggle session
103:bind = $mainMod, M, exec, caelestia toggle music

dotfiles/hypr/hyprland/rules.conf
101:layerrule = noanim, caelestia-(border-exclusion|area-picker)
102:layerrule = animation fade, caelestia-(drawers|background)
104:layerrule = blur, caelestia-drawers
105:layerrule = ignorealpha 0.57, caelestia-drawers

modules/homemanager/linux/features/caelestia.nix
3:  programs.caelestia = {
5:    extraConfig = builtins.readFile ../../../../dotfiles/caelestia/shell.json;
8:      extraConfig = builtins.readFile ../../../../dotfiles/caelestia/cli.json;

modules/homemanager/linux/features/hyprland/hypridle.nix
5:      lock_cmd = "caelestia shell lock lock";
6:      before_sleep_cmd = "caelestia shell lock lock";
14:        on-timeout = "caelestia shell lock lock";

modules/homemanager/linux/bundles/sun1.nix
13:  nixma.linux.caelestia.enable = true;

modules/homemanager/linux/bundles/air.nix
19:  nixma.linux.caelestia.enable = true;

[Markus328]

I did not add the package into nixos system package. Or atleast I was not trying to and made something stupid. I just include the caelesia package in the pkgs using overlay and then try to use the package in programs.caelestia.package. But I dont have any patches at the moment.

So I removed these overlay addition and custom package in home manager module configuration. Even then it is still the same

❯ rg caelestia
libx/default.nix
66:      inputs.caelestia-shell.homeManagerModules.default

flake.nix
38:    caelestia-shell = {
39:      url = "github:caelestia-dots/shell";

dotfiles/hypr/hyprland/keybinds.conf
2:$lock = caelestia shell lock lock
3:$menu = caelestia shell drawers toggle launcher
14:bind = $mainMod+SHIFT, r, exec, systemctl --user restart caelestia.service
20:bind = $mainMod+SHIFT, d, exec, caelestia shell drawers toggle dashboard
21:bind = $mainMod+SHIFT, q, exec, caelestia shell drawers toggle session
103:bind = $mainMod, M, exec, caelestia toggle music

dotfiles/hypr/hyprland/rules.conf
101:layerrule = noanim, caelestia-(border-exclusion|area-picker)
102:layerrule = animation fade, caelestia-(drawers|background)
104:layerrule = blur, caelestia-drawers
105:layerrule = ignorealpha 0.57, caelestia-drawers

modules/homemanager/linux/features/caelestia.nix
3:  programs.caelestia = {
5:    extraConfig = builtins.readFile ../../../../dotfiles/caelestia/shell.json;
8:      extraConfig = builtins.readFile ../../../../dotfiles/caelestia/cli.json;

modules/homemanager/linux/features/hyprland/hypridle.nix
5:      lock_cmd = "caelestia shell lock lock";
6:      before_sleep_cmd = "caelestia shell lock lock";
14:        on-timeout = "caelestia shell lock lock";

modules/homemanager/linux/bundles/sun1.nix
13:  nixma.linux.caelestia.enable = true;

modules/homemanager/linux/bundles/air.nix
19:  nixma.linux.caelestia.enable = true;

6bc5dijwmvqxg41jgldbbmmzz3pqby4w-caelestia-shell-54921ee354827aac71a435ad9fe903b8667901fc is a old version of caelestia-shell (I have this in my nix store also, it's before the idle_inhibit script removal)

I assume you are using home-manager as nixos module (correct me if you dont). Do the following in your dotfiles repo (where is located the flake.nix):

nix flake update caelestia-shell
nixos-rebuild switch --flake .

If the systemd service still is using the old version, try running:

nix-store --query --roots /nix/store/6bc5dijwmvqxg41jgldbbmmzz3pqby4w-caelestia-shell-54921ee354827aac71a435ad9fe903b8667901fc

And see if it outputs anything (ensure the systemd service is stopped before running)

Somehow is polluting your path with other version (maybe newer) of caelestia.

At the last try, I will ask to you to disable the caelestia module and ensure that any caelestia binary is wiped from your path and the systemd service as well

[nappairam]

Yes I am using homemnager as nixos module. I did what you mentioned. Until now I was using nh to switch instead of nixos-rebuild,

Interestingly, nh os switch is completing successfully but nixos-rebuild switch is failing

❯ just
nh os switch . -- --accept-flake-config
> Building NixOS configuration
warning: Git tree '/home/maari/nix-config' is dirty
Finished at 03:51:33 after 0s
> Comparing changes
<<< /run/current-system
>>> /tmp/nh-os5rT3Nm/result
No version or selection state changes.
Closure size: 2234 -> 2234 (0 paths added, 0 paths removed, delta +0, disk usage +0B).
> Activating configuration
activating the configuration...
reloading user units for maari...
restarting sysinit-reactivation.target
the following new units were started: NetworkManager-dispatcher.service
warning: the following units failed: home-manager-maari.service
> Adding configuration to bootloader
Installing Lanzaboote to "/boot"...
Collecting garbage...
Successfully installed Lanzaboote.


❯ nixos-rebuild switch --flake .
warning: Git tree '/home/maari/nix-config' is dirty
building the system configuration...
warning: Git tree '/home/maari/nix-config' is dirty
error: creating symlink '"/nix/var/nix/profiles/.0_system"' -> '"system-360-link"': Permission denied
Command 'nix-env -p /nix/var/nix/profiles/system --set /nix/store/5wq8k3i07ww71khjq8rflf7ib2yzfn3m-nixos-system-air-25.11.20250827.8a6d542' returned non-zero exit status 1.


❯ nix-store --query --roots /nix/store/6bc5dijwmvqxg41jgldbbmmzz3pqby4w-caelestia-shell-54921ee354827aac71a435ad9fe903b8667901fc
/proc/6439/maps -> /nix/store/2yz8c9xz9cq8knl848wajp89lbzz111y-home-manager-path
/proc/35498/maps -> /nix/store/2yz8c9xz9cq8knl848wajp89lbzz111y-home-manager-path
/proc/2605/maps -> /nix/store/2yz8c9xz9cq8knl848wajp89lbzz111y-home-manager-path
/proc/6349/maps -> /nix/store/2yz8c9xz9cq8knl848wajp89lbzz111y-home-manager-path
/proc/2751/maps -> /nix/store/2yz8c9xz9cq8knl848wajp89lbzz111y-home-manager-path
/proc/6435/maps -> /nix/store/2yz8c9xz9cq8knl848wajp89lbzz111y-home-manager-path
/proc/2823/maps -> /nix/store/2yz8c9xz9cq8knl848wajp89lbzz111y-home-manager-path
/proc/3247/maps -> /nix/store/2yz8c9xz9cq8knl848wajp89lbzz111y-home-manager-path
/proc/6642/maps -> /nix/store/2yz8c9xz9cq8knl848wajp89lbzz111y-home-manager-path
/proc/45671/maps -> /nix/store/2yz8c9xz9cq8knl848wajp89lbzz111y-home-manager-path
/proc/20070/maps -> /nix/store/2yz8c9xz9cq8knl848wajp89lbzz111y-home-manager-path
/proc/6272/maps -> /nix/store/2yz8c9xz9cq8knl848wajp89lbzz111y-home-manager-path
/proc/6144/maps -> /nix/store/2yz8c9xz9cq8knl848wajp89lbzz111y-home-manager-path
/proc/6419/maps -> /nix/store/2yz8c9xz9cq8knl848wajp89lbzz111y-home-manager-path
/nix/var/nix/profiles/system-352-link -> /nix/store/v7j4d286abnz64ba3ll9lqqnz24lylv4-nixos-system-air-25.11.20250819.2007595
/nix/var/nix/profiles/system-353-link -> /nix/store/m965n1dq3pp4w8ks42xxc1wi3i1b4j7p-nixos-system-air-25.11.20250819.2007595
/nix/var/nix/profiles/system-348-link -> /nix/store/shfzdzhhn2psrfqnwhvws16iwm3a9b71-nixos-system-air-25.11.20250819.2007595
/home/maari/.local/state/home-manager/gcroots/current-home -> /nix/store/0x2r3i39lx35jl7q9jzd8ckfxbm2l5hh-home-manager-generation

❯ nix-store --query --roots /nix/store/i0rjxyh4jqn0a1yng3lkaxzdxdxim367-caelestia-shell-1.0.0/
/nix/var/nix/profiles/system-360-link -> /nix/store/5wq8k3i07ww71khjq8rflf7ib2yzfn3m-nixos-system-air-25.11.20250827.8a6d542
/run/current-system -> /nix/store/5wq8k3i07ww71khjq8rflf7ib2yzfn3m-nixos-system-air-25.11.20250827.8a6d542

Yes, the path is still used by home-manager current home. Somehow, nh os switch is failing to update it, but still completing successfully

[Markus328]

Yes I am using homemnager as nixos module. I did what you mentioned. Until now I was using nh to switch instead of nixos-rebuild,

Interestingly, nh os switch is completing successfully but nixos-rebuild switch is failing

❯ just
nh os switch . -- --accept-flake-config
> Building NixOS configuration
warning: Git tree '/home/maari/nix-config' is dirty
Finished at 03:51:33 after 0s
> Comparing changes
<<< /run/current-system
>>> /tmp/nh-os5rT3Nm/result
No version or selection state changes.
Closure size: 2234 -> 2234 (0 paths added, 0 paths removed, delta +0, disk usage +0B).
> Activating configuration
activating the configuration...
reloading user units for maari...
restarting sysinit-reactivation.target
the following new units were started: NetworkManager-dispatcher.service
warning: the following units failed: home-manager-maari.service
> Adding configuration to bootloader
Installing Lanzaboote to "/boot"...
Collecting garbage...
Successfully installed Lanzaboote.


❯ nixos-rebuild switch --flake .
warning: Git tree '/home/maari/nix-config' is dirty
building the system configuration...
warning: Git tree '/home/maari/nix-config' is dirty
error: creating symlink '"/nix/var/nix/profiles/.0_system"' -> '"system-360-link"': Permission denied
Command 'nix-env -p /nix/var/nix/profiles/system --set /nix/store/5wq8k3i07ww71khjq8rflf7ib2yzfn3m-nixos-system-air-25.11.20250827.8a6d542' returned non-zero exit status 1.


❯ nix-store --query --roots /nix/store/6bc5dijwmvqxg41jgldbbmmzz3pqby4w-caelestia-shell-54921ee354827aac71a435ad9fe903b8667901fc
/proc/6439/maps -> /nix/store/2yz8c9xz9cq8knl848wajp89lbzz111y-home-manager-path
/proc/35498/maps -> /nix/store/2yz8c9xz9cq8knl848wajp89lbzz111y-home-manager-path
/proc/2605/maps -> /nix/store/2yz8c9xz9cq8knl848wajp89lbzz111y-home-manager-path
/proc/6349/maps -> /nix/store/2yz8c9xz9cq8knl848wajp89lbzz111y-home-manager-path
/proc/2751/maps -> /nix/store/2yz8c9xz9cq8knl848wajp89lbzz111y-home-manager-path
/proc/6435/maps -> /nix/store/2yz8c9xz9cq8knl848wajp89lbzz111y-home-manager-path
/proc/2823/maps -> /nix/store/2yz8c9xz9cq8knl848wajp89lbzz111y-home-manager-path
/proc/3247/maps -> /nix/store/2yz8c9xz9cq8knl848wajp89lbzz111y-home-manager-path
/proc/6642/maps -> /nix/store/2yz8c9xz9cq8knl848wajp89lbzz111y-home-manager-path
/proc/45671/maps -> /nix/store/2yz8c9xz9cq8knl848wajp89lbzz111y-home-manager-path
/proc/20070/maps -> /nix/store/2yz8c9xz9cq8knl848wajp89lbzz111y-home-manager-path
/proc/6272/maps -> /nix/store/2yz8c9xz9cq8knl848wajp89lbzz111y-home-manager-path
/proc/6144/maps -> /nix/store/2yz8c9xz9cq8knl848wajp89lbzz111y-home-manager-path
/proc/6419/maps -> /nix/store/2yz8c9xz9cq8knl848wajp89lbzz111y-home-manager-path
/nix/var/nix/profiles/system-352-link -> /nix/store/v7j4d286abnz64ba3ll9lqqnz24lylv4-nixos-system-air-25.11.20250819.2007595
/nix/var/nix/profiles/system-353-link -> /nix/store/m965n1dq3pp4w8ks42xxc1wi3i1b4j7p-nixos-system-air-25.11.20250819.2007595
/nix/var/nix/profiles/system-348-link -> /nix/store/shfzdzhhn2psrfqnwhvws16iwm3a9b71-nixos-system-air-25.11.20250819.2007595
/home/maari/.local/state/home-manager/gcroots/current-home -> /nix/store/0x2r3i39lx35jl7q9jzd8ckfxbm2l5hh-home-manager-generation

❯ nix-store --query --roots /nix/store/i0rjxyh4jqn0a1yng3lkaxzdxdxim367-caelestia-shell-1.0.0/
/nix/var/nix/profiles/system-360-link -> /nix/store/5wq8k3i07ww71khjq8rflf7ib2yzfn3m-nixos-system-air-25.11.20250827.8a6d542
/run/current-system -> /nix/store/5wq8k3i07ww71khjq8rflf7ib2yzfn3m-nixos-system-air-25.11.20250827.8a6d542

Yes, the path is still used by home-manager current home. Somehow, nh os switch is failing to update it, but still completing successfully

I have no idea what could be happening, but I'm almost sure is something in your current config, I'll get a time to test this module using hm as nixos module (I use it standalone)