Something changed in nix or in the virtual machine, and now the vm user
is empty when nix tries to read it. This is a temporary workaround. A
full rewrite of the image generation script will probably follow.
---
I found a nicer way to generate the image by using a function from the
official repos. I'll rewrite the image generator from scratch sometimes
in the following weeks (reeally busy now), so in the meantime here's an
hotfix.

 images/nixos/image.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/images/nixos/image.nix b/images/nixos/image.nix
index d11b172..526bbe5 100644
--- a/images/nixos/image.nix
+++ b/images/nixos/image.nix
@@ -45,6 +45,7 @@ in pkgs.vmTools.runInLinuxVM (
       done
 
       storePaths=$(perl ${pkgs.pathsFromGraph} /tmp/xchg/closure)
+      export USER=root # temporary hotfix
       echo filling Nix store...
       mkdir -p /mnt/nix/store
       set -f
-- 
2.23.0

---
Just the usual upgrade

 images/nixos/19.09/functions | 1 +
 images/nixos/19.09/genimg    | 3 +++
 images/nixos/latest          | 2 +-
 3 files changed, 5 insertions(+), 1 deletion(-)
 create mode 120000 images/nixos/19.09/functions
 create mode 100755 images/nixos/19.09/genimg

diff --git a/images/nixos/19.09/functions b/images/nixos/19.09/functions
new file mode 120000
index 0000000..c0b5bcc
--- /dev/null
+++ b/images/nixos/19.09/functions
@@ -0,0 +1 @@
+../functions
\ No newline at end of file
diff --git a/images/nixos/19.09/genimg b/images/nixos/19.09/genimg
new file mode 100755
index 0000000..2f57cd2
--- /dev/null
+++ b/images/nixos/19.09/genimg
@@ -0,0 +1,3 @@
+#!/bin/sh
+export release=19.09
+exec ../genimg "$@"
diff --git a/images/nixos/latest b/images/nixos/latest
index 360de63..ba19dc3 120000
--- a/images/nixos/latest
+++ b/images/nixos/latest
@@ -1 +1 @@
-19.03
\ No newline at end of file
+19.09
\ No newline at end of file
-- 
2.23.0

Thanks!

To git.sr.ht:~sircmpwn/builds.sr.ht
   e5de6d3..606e2c7  master -> master
 * [new tag]         0.48.0 -> 0.48.0

Can you follow this up with a sr.ht-docs patch updating
compatibility.md? I'll be submitting a build to prepare the image
momentarily.

---
 builds.sr.ht/compatibility.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/builds.sr.ht/compatibility.md b/builds.sr.ht/compatibility.md
index deb4cdd..a882091 100644
--- a/builds.sr.ht/compatibility.md
@@ -559,10 +559,10 @@ Maintainer: Francesco Gazzetta <fgaz@fgaz.me>
 <table class="table table-sm table-hover">
   <thead>
     <tr>
-      <th>NixOS 19.03</th>
+      <th>NixOS 19.09</th>
       <th colspan="3" style="font-weight: normal; text-align: center">
         <code>image: nixos/latest</code> <strong>or</strong>
-        <code>image: nixos/19.03</code>
+        <code>image: nixos/19.09</code>
       </th>
     </tr>
     <tr>
-- 
2.23.0

Thanks!

To git.sr.ht:~sircmpwn/sr.ht-docs
   340015a..1c6cf67  master -> master