I want to register my project(hello-mavenix) in global nix packages .

[PlumpHip]

I am config.nix...
and
hello-mavenix = ~/hello-mavenix/default.nix {};
After this,

I want to register my project in packages .
There's an error like this.

these derivations will be built:
/nix/store/mx0w9xs5nfkqavcxmphxc9npab26gx1g-hello-mavenix-1.0-SNAPSHOT.drv
/nix/store/lb40zchlxpp1kb9bn6jznyyxp4xjf6yb-pnix.drv
building '/nix/store/mx0w9xs5nfkqavcxmphxc9npab26gx1g-hello-mavenix-1.0-SNAPSHOT.drv'...
unpacking sources
unpacking source archive /nix/store/xr9awm3988yqj4r0pmfl52rzj3fk1mad-src-1.27
source root is src-1.27
setting SOURCE_DATE_EPOCH to timestamp 315619200 of file src-1.27/share/man/man1/src.1.gz
patching sources
configuring
no configure script, doing nothing
building
Apache Maven 3.6.3 (cecedd343002696d0abb50b32b541b8a6ba2883f)
Maven home: /nix/store/sign0xbcnqlrbqy86y1zsdrin8q05yk0-apache-maven-3.6.3/maven
Java version: 11.0.8, vendor: GraalVM Community, runtime: /nix/store/gf4n35hrc6nxsv5z6gx8xnbg0kk1vfs7-graalvm
Default locale: ko_KR, platform encoding: UTF-8
OS name: "mac os x", version: "10.15.7", arch: "x86_64", family: "mac"
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 0.071 s
[INFO] Finished at: 2020-10-29T01:09:23Z
[INFO] ------------------------------------------------------------------------
[ERROR] The goal you specified requires a project to execute but there is no POM in this directory (/private/var/folders/x4/dbbyh0q95_78gg96dmrcyl8c0000gn/T/nix-build-hello-mavenix-1.0-SNAPSHOT.drv-0/src-1.27). Please verify you invoked Maven from the correct directory. -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MissingProjectException
builder for '/nix/store/mx0w9xs5nfkqavcxmphxc9npab26gx1g-hello-mavenix-1.0-SNAPSHOT.drv' failed with exit code 1
cannot build derivation '/nix/store/lb40zchlxpp1kb9bn6jznyyxp4xjf6yb-pnix.drv': 1 dependencies couldn't be built
error: build of '/nix/store/lb40zchlxpp1kb9bn6jznyyxp4xjf6yb-pnix.drv' failed