>
>> 
>> Pushed to wip-guix-home.
>>
>> Also, I tried to use guix home for the first time as documented at site
>> [1], and got an error:
>> --8<---------------cut here---------------start------------->8---
>> (string-append #f "/" "profile/share/fonts")
>> In procedure string-append: Wrong type (expecting string): #f
>> --8<---------------cut here---------------end--------------->8---
>>
>> [1] https://guix-home.trop.in/Declaring-the-Home-Environment.html
>>
>>
>> The following text in the message is only about the error.
>>
>> oleg@guixsd ~/src/guix-wip-guix-home$ mkdir /tmp/guix
>>
>> oleg@guixsd ~/src/guix-wip-guix-home$ guix pull --url=file:///home/oleg/src/guix-wip-guix-home --branch=wip-guix-home -p /tmp/guix/guix
>>
>> ~/.local/share/chezmoi/dotfiles/guixsd/home.scm:
>> --8<---------------cut here---------------start------------->8---
>> (use-modules (gnu home)
>> 	     (gnu home-services)
>> 	     ;; (gnu home-services ssh)
>> 	     (gnu home-services shells)
>> 	     ;; (gnu home-services files)
>> 	     (gnu services)
>> 	     (gnu packages admin)
>>              (guix gexp)
>>
>>              (ice-9 rdelim))
>>
>> (define %home
>>   (and=> (getenv "HOME")
>>          (lambda (home)
>>            home)))
>>
>> (define .bash_profile
>>   (string-append %home "/.local/share/chezmoi/dot_bash_profile"))
>>
>> (home-environment
>>
>>  ;; (packages (list htop))
>>
>>  (services
>>   (list
>>
>>    (service home-bash-service-type
>>             (home-bash-configuration
>>              (guix-defaults? #t)
>>              (bash-profile
>>               (list
>>                (with-input-from-file .bash_profile read-string)))))
>>
>>    ;; XXX: missing home-files-service-type
>>    ;; (simple-service 'test-config
>>    ;;                 home-files-service-type
>>    ;;                 (list `("config/test.conf"
>>    ;;                         ,(plain-file "tmp-file.txt"
>>    ;;                                      "the content of ~/.config/test.conf"))))
>>    
>>    ;; XXX: missing home-ssh-configuration
>>    ;; (service home-ssh-service-type
>>    ;;          (home-ssh-configuration
>>    ;;           (extra-config
>>    ;;            (list
>>    ;;             (ssh-host "savannah"
>>    ;;      		 '((compression . #f)))))))
>>
>>    )))
>> --8<---------------cut here---------------end--------------->8---
>>
>> My first guix home reconfigure launch:
>> --8<---------------cut here---------------start------------->8---
>> oleg@guixsd ~/src/guix-wip-guix-home$ /tmp/guix/guix/bin/guix home reconfigure ~/.local/share/chezmoi/dotfiles/guixsd/home.scm
>> /gnu/store/xl4igqm0jjy7gfbganz9061ivdgzfpdk-home
>> New symlinks to home-environment will be created soon.
>> All conflicting files will go to /home/oleg/1630407324-guix-home-legacy-configs-backup.
>>
>> Skipping   /home/oleg/.config (directory already exists)... done
>> Creating   /home/oleg/.config/fontconfig... done
>> Symlinking /home/oleg/.config/fontconfig/fonts.conf -> /gnu/store/phj2z2iiqdhryfy7mqral0b9qz3hlva6-fonts.conf... done
>> Backing up /home/oleg/.bashrc... done
>> Symlinking /home/oleg/.bashrc -> /gnu/store/513j2xkszmcmv7fiawh59mr0i1fmin55-bashrc... done
>> Symlinking /home/oleg/.profile -> /gnu/store/fxbppk3pqzdi3zzy0xl5vg1ir6c5jzq5-shell-profile... done
>> Backing up /home/oleg/.bash_profile... done
>> Symlinking /home/oleg/.bash_profile -> /gnu/store/2c3yva8vj5ikb0gspmjvzw0r9g9i1cxc-bash_profile... done
>>  done
>> Finished updating symlinks.
>>
>> Backtrace:
>> In guix/ui.scm:
>>    2185:7 19 (run-guix . _)
>>   2148:10 18 (run-guix-command _ . _)
>> In ice-9/boot-9.scm:
>>   1752:10 17 (with-exception-handler _ _ #:unwind? _ # _)
>> In guix/status.scm:
>>     820:3 16 (_)
>>     800:4 15 (call-with-status-report _ _)
>> In guix/scripts/home.scm:
>>     214:4 14 (_)
>> In ice-9/boot-9.scm:
>>   1752:10 13 (with-exception-handler _ _ #:unwind? _ # _)
>> In guix/store.scm:
>>    658:37 12 (thunk)
>>    1320:8 11 (call-with-build-handler _ _)
>>    1320:8 10 (call-with-build-handler #<procedure 7f5d757319c0 at g…> …)
>>   2108:24  9 (run-with-store #<store-connection 256.99 7f5d77fb3550> …)
>> In guix/scripts/home.scm:
>>    169:15  8 (_ _)
>> In unknown file:
>>            7 (primitive-load "/gnu/store/xl4igqm0jjy7gfbganz9061ivdg…")
>> In ice-9/eval.scm:
>>     619:8  6 (_ #(#(#(#(#(#(#(#(#(#(#<…> …) …) …) …) …) …) …) …) …) …))
>>    626:19  5 (_ #(#(#(#(#(#(#(#(#(#(#<…> …) …) …) …) …) …) …) …) …) …))
>> In srfi/srfi-1.scm:
>>    586:17  4 (map1 (("profile/share/fonts" (system* "/gnu/stor…" …))))
>> In ice-9/eval.scm:
>>    293:34  3 (_ #(#(#<directory (guile-user) 7f5d87ca3c80> #<va…>) #))
>> In unknown file:
>>            2 (string-append #f "/" "profile/share/fonts")
>> In ice-9/boot-9.scm:
>>   1685:16  1 (raise-exception _ #:continuable? _)
>>   1685:16  0 (raise-exception _ #:continuable? _)
>>
>> ice-9/boot-9.scm:1685:16: In procedure raise-exception:
>> In procedure string-append: Wrong type (expecting string): #f
>
> run-on-change service doesn't handle the case, where the previous
> generation doesn't exists.  Fix should be pretty simple, will send a
> patch once it done.  Thank you for catching this)
>

The fix: