Hi neonix
Seems you didn't look very hard. obconf is all over the place:
http://tinycorelinux.net/10.x/x86_64/tcz/
-rw-rw-r-- 1 root staff 192512 Dec 20 2018 obconf-locale.tcz
-rw-rw-r-- 1 root staff 81920 Dec 20 2018 obconf.tcz
http://tinycorelinux.net/10.x/x86/tcz/
-rw-rw-r-- 1 root staff 192512 Dec 20 2018 obconf-locale.tcz
-rw-rw-r-- 1 root staff 77824 Dec 20 2018 obconf.tcz
http://tinycorelinux.net/11.x/x86_64/tcz/
-rw-rw-r-- 1 root staff 192512 Jan 19 2020 obconf-locale.tcz
-rw-rw-r-- 1 root staff 81920 Jan 19 2020 obconf.tcz
http://tinycorelinux.net/11.x/x86/tcz/
-rw-rw-r-- 1 root staff 192512 Jan 19 2020 obconf-locale.tcz
-rw-rw-r-- 1 root staff 77824 Jan 19 2020 obconf.tcz
http://tinycorelinux.net/12.x/x86_64/tcz/
-rw-rw-r-- 1 root staff 192512 Mar 17 2021 obconf-locale.tcz
-rw-rw-r-- 1 root staff 81920 Mar 17 2021 obconf.tcz
http://tinycorelinux.net/12.x/x86/tcz/
-rw-rw-r-- 1 root staff 192512 Feb 15 2021 obconf-locale.tcz
-rw-rw-r-- 1 root staff 77824 Feb 15 2021 obconf.tcz
http://tinycorelinux.net/13.x/x86_64/tcz/
-rw-rw-r-- 1 root staff 192512 Dec 26 2021 obconf-locale.tcz
-rw-rw-r-- 1 root staff 81920 Dec 26 2021 obconf.tcz
http://tinycorelinux.net/13.x/x86/tcz/
-rw-rw-r-- 1 root staff 192512 Dec 26 2021 obconf-locale.tcz
-rw-rw-r-- 1 root staff 77824 Dec 26 2021 obconf.tcz
http://tinycorelinux.net/14.x/x86_64/tcz/
-rw-rw-r-- 1 root staff 192512 Dec 26 2021 obconf-locale.tcz
-rw-rw-r-- 1 root staff 81920 Dec 26 2021 obconf.tcz
http://tinycorelinux.net/14.x/x86/tcz/
-rw-rw-r-- 1 root staff 192512 Dec 26 2021 obconf-locale.tcz
-rw-r--r-- 1 juanito juanito 77824 Feb 1 15:30 obconf.tcz
http://tinycorelinux.net/15.x/x86_64/tcz/
-rw-rw-r-- 1 root staff 192512 Dec 26 2021 obconf-locale.tcz
-rw-rw-r-- 1 root staff 81920 Dec 26 2021 obconf.tcz
http://tinycorelinux.net/15.x/x86/tcz/
-rw-rw-r-- 1 root staff 192512 Dec 26 2021 obconf-locale.tcz
-rw-rw-r-- 1 root staff 77824 Dec 26 2021 obconf.tcz
http://tinycorelinux.net/5.x/armv6/tcz/
-rw-rw-r-- 1 root staff 192512 Sep 28 2013 obconf-locale.tcz
-rw-rw-r-- 1 root staff 77824 Sep 28 2013 obconf.tcz
http://tinycorelinux.net/5.x/x86/tcz/
-rw-rw-r-- 1 root staff 192512 Aug 21 2013 obconf-locale.tcz
-rw-rw-r-- 1 root staff 77824 Aug 21 2013 obconf.tcz
http://tinycorelinux.net/6.x/armv6/tcz/
-rw-rw-r-- 1 root staff 106496 Dec 10 2014 obconf-locale.tcz
-rw-rw-r-- 1 root staff 53248 Jul 2 2015 obconf.tcz
http://tinycorelinux.net/6.x/armv7/tcz/
-rw-rw-r-- 1 root staff 106496 Dec 10 2014 obconf-locale.tcz
-rw-rw-r-- 1 root staff 53248 Jul 2 2015 obconf.tcz
http://tinycorelinux.net/6.x/x86/tcz/
-rw-rw-r-- 1 root staff 192512 Oct 13 2014 obconf-locale.tcz
-rw-rw-r-- 1 root staff 77824 Oct 13 2014 obconf.tcz
http://tinycorelinux.net/7.x/armv6/tcz/
-rw-rw-r-- 1 root staff 106496 Dec 10 2014 obconf-locale.tcz
-rw-rw-r-- 1 root staff 53248 Jul 2 2015 obconf.tcz
http://tinycorelinux.net/7.x/armv7/tcz/
-rw-rw-r-- 1 root staff 106496 Dec 10 2014 obconf-locale.tcz
-rw-rw-r-- 1 root staff 53248 Jul 2 2015 obconf.tcz
http://tinycorelinux.net/7.x/x86_64/tcz/
-rw-rw-r-- 1 root staff 192512 Jan 15 2017 obconf-locale.tcz
-rw-rw-r-- 1 root staff 81920 Jan 15 2017 obconf.tcz
http://tinycorelinux.net/7.x/x86/tcz/
-rw-rw-r-- 1 root staff 192512 Dec 12 2015 obconf-locale.tcz
-rw-rw-r-- 1 root staff 77824 Dec 12 2015 obconf.tcz
http://tinycorelinux.net/8.x/x86_64/tcz/
-rw-rw-r-- 1 root staff 192512 Mar 6 2017 obconf-locale.tcz
-rw-rw-r-- 1 root staff 81920 Mar 6 2017 obconf.tcz
http://tinycorelinux.net/8.x/x86/tcz/
-rw-rw-r-- 1 root staff 192512 Mar 7 2017 obconf-locale.tcz
-rw-rw-r-- 1 root staff 77824 Mar 7 2017 obconf.tcz
http://tinycorelinux.net/9.x/x86_64/tcz/
-rw-rw-r-- 1 root staff 192512 Jan 4 2018 obconf-locale.tcz
-rw-rw-r-- 1 root staff 81920 Jan 4 2018 obconf.tcz
http://tinycorelinux.net/9.x/x86/tcz/
-rw-rw-r-- 1 root staff 192512 Jan 4 2018 obconf-locale.tcz
-rw-rw-r-- 1 root staff 77824 Jan 4 2018 obconf.tcz