currently I'm experimenting a bit with installing packages manually (not prepackaged from the repositories (I'm under Linux)). I use tllocalmgr (see this wiki post here and this package here), but I think this is not the point. In effect I have the (tex-) package installed at /usr/local/share/texmf/tex/latex/.
The problem I ran into is that kpsewhich seems not to be able to find the (tex-) package. What made me wonder was that when enabling the debug output, I can see that kpsewhich indeed looked into the /usr/share/texmf-dist/ directory.
Can someone help me finding the issue here?
Note: I'm using ArchLinux (this is no I use Arch btw, but I think I read somewhere that arch does some things regarding some paths when compiling tex)
See my output on the console:
$ tllocalmgr install nicematrix && sudo texhash
Initializing ...
==> ERROR: PKGBUILD does not exist.
==> WARNING: A package has already been built, installing existing package...
==> Installing package texlive-local-nicematrix with pacman -U...
loading packages...
resolving dependencies...
looking for conflicting packages...
Packages (1) texlive-local-nicematrix-62660-1
Total Installed Size: 0,30 MiB
:: Proceed with installation? [Y/n] y
(1/1) checking keys in keyring [#####################################################################] 100%
(1/1) checking package integrity [#####################################################################] 100%
(1/1) loading package files [#####################################################################] 100%
(1/1) checking for file conflicts [#####################################################################] 100%
(1/1) checking available disk space [#####################################################################] 100%
:: Processing package changes...
(1/1) installing texlive-local-nicematrix [#####################################################################] 100%
:: Running post-transaction hooks...
(1/1) Arming ConditionNeedsUpdate...
>>> Finished. Don't forget to run 'texhash' to update your file database.
texhash: Updating /etc/texmf/ls-R...
texhash: Updating /usr/local/share/texmf/ls-R...
texhash: Updating /usr/share/texmf/ls-R...
texhash: Updating /usr/share/texmf-dist/ls-R...
texhash: Updating /var/lib/texmf/ls-R...
texhash: Done.
$ pacman -Ql texlive-local-nicematrix
texlive-local-nicematrix /usr/
texlive-local-nicematrix /usr/local/
texlive-local-nicematrix /usr/local/share/
texlive-local-nicematrix /usr/local/share/texmf/
texlive-local-nicematrix /usr/local/share/texmf/tex/
texlive-local-nicematrix /usr/local/share/texmf/tex/latex/
texlive-local-nicematrix /usr/local/share/texmf/tex/latex/nicematrix/
texlive-local-nicematrix /usr/local/share/texmf/tex/latex/nicematrix/nicematrix.sty
$ kpsewhich tikz
/usr/share/texmf-dist/tex/plain/pgf/frontendlayer/tikz.tex
$ kpsewhich -debug=2 nicematrix
kdebug:db:init(): using db file /usr/local/share/texmf/ls-R.
kdebug:db:init(): using db file /usr/share/texmf/ls-R.
kdebug:db:init(): using db file /etc/texmf/ls-R.
kdebug:db:init(): using db file /var/lib/texmf/ls-R.
kdebug:db:init(): using db file /usr/share/texmf-dist/ls-R.
kdebug:/usr/local/share/texmf/ls-R: 6 entries in 4 directories (0 hidden).
kdebug:ls-R hash table:64007 buckets, 6 nonempty (0%); 6 entries, average chain 1.0.
kdebug:/usr/share/texmf/ls-R: 20 entries in 7 directories (0 hidden).
kdebug:ls-R hash table:64007 buckets, 22 nonempty (0%); 26 entries, average chain 1.2.
kdebug:/etc/texmf/ls-R: 29 entries in 12 directories (0 hidden).
kdebug:ls-R hash table:64007 buckets, 46 nonempty (0%); 55 entries, average chain 1.2.
kdebug:/var/lib/texmf/ls-R: 149 entries in 28 directories (0 hidden).
kdebug:ls-R hash table:64007 buckets, 172 nonempty (0%); 204 entries, average chain 1.2.
kdebug:/usr/share/texmf-dist/ls-R: 30102 entries in 2202 directories (0 hidden).
kdebug:ls-R hash table:64007 buckets, 20285 nonempty (31%); 30306 entries, average chain 1.5.
$ cat /usr/local/share/texmf/ls-R
% ls-R -- filename database for kpathsea; do not change this line.
./:
.:
ls-R
tex
./tex:
latex
./tex/latex:
nicematrix
./tex/latex/nicematrix:
nicematrix.sty
$
Best Answer
Turns out
kpsewhich nicematrix.stywould have been able to find the file