Just tried it, works without problems for me on Windows 10:
D:\>nim --version
Nim Compiler Version 1.6.8 [Windows: amd64]
Compiled at 2022-09-27
Copyright (c) 2006-2021 by Andreas Rumpf
active boot switches: -d:release
D:\>nimble --version
nimble v0.13.1 compiled at 2022-09-27 01:48:19
git hash: couldn't determine git hash
D:\>nimble --verbose install polymorph
Reading official package list
Downloading https://github.com/rlipsc/polymorph using git
Cloning latest tagged version: v0.3.1
Verifying dependencies for [email protected]
Installing [email protected]
Copying file
...\AppData\Local\Temp\nimble_10968\githubcom_rlipscpolymorph\src\polymorph\components.nim
to ...\.nimble\pkgs\polymorph-0.3.1\polymorph\components.nim
Copying file
...\AppData\Local\Temp\nimble_10968\githubcom_rlipscpolymorph\src\polymorph\entities.nim
to ...\.nimble\pkgs\polymorph-0.3.1\polymorph\entities.nim
Copying file
...\AppData\Local\Temp\nimble_10968\githubcom_rlipscpolymorph\src\polymorph\private\debugging.nim
to ...\.nimble\pkgs\polymorph-0.3.1\polymorph\private\debugging.nim
Copying file
...\AppData\Local\Temp\nimble_10968\githubcom_rlipscpolymorph\src\polymorph\private\ecsstatedb.nim
to ...\.nimble\pkgs\polymorph-0.3.1\polymorph\private\ecsstatedb.nim
Copying file
...\AppData\Local\Temp\nimble_10968\githubcom_rlipscpolymorph\src\polymorph\private\ecsstatedbaccess.nim
to ...\.nimble\pkgs\polymorph-0.3.1\polymorph\private\ecsstatedbaccess.nim
Copying file
...\AppData\Local\Temp\nimble_10968\githubcom_rlipscpolymorph\src\polymorph\private\ecsstatedbgen.nim
to ...\.nimble\pkgs\polymorph-0.3.1\polymorph\private\ecsstatedbgen.nim
Copying file
...\AppData\Local\Temp\nimble_10968\githubcom_rlipscpolymorph\src\polymorph\private\eventutils.nim
to ...\.nimble\pkgs\polymorph-0.3.1\polymorph\private\eventutils.nim
Copying file
...\AppData\Local\Temp\nimble_10968\githubcom_rlipscpolymorph\src\polymorph\private\identities.nim
to ...\.nimble\pkgs\polymorph-0.3.1\polymorph\private\identities.nim
Copying file
...\AppData\Local\Temp\nimble_10968\githubcom_rlipscpolymorph\src\polymorph\private\mutationtracking.nim
to ...\.nimble\pkgs\polymorph-0.3.1\polymorph\private\mutationtracking.nim
Copying file
...\AppData\Local\Temp\nimble_10968\githubcom_rlipscpolymorph\src\polymorph\private\nodeutils.nim
to ...\.nimble\pkgs\polymorph-0.3.1\polymorph\private\nodeutils.nim
Copying file
...\AppData\Local\Temp\nimble_10968\githubcom_rlipscpolymorph\src\polymorph\private\statechangegen.nim
to ...\.nimble\pkgs\polymorph-0.3.1\polymorph\private\statechangegen.nim
Copying file
...\AppData\Local\Temp\nimble_10968\githubcom_rlipscpolymorph\src\polymorph\private\statechangeutils.nim
to ...\.nimble\pkgs\polymorph-0.3.1\polymorph\private\statechangeutils.nim
Copying file
...\AppData\Local\Temp\nimble_10968\githubcom_rlipscpolymorph\src\polymorph\private\utils.nim
to ...\.nimble\pkgs\polymorph-0.3.1\polymorph\private\utils.nim
Copying file
...\AppData\Local\Temp\nimble_10968\githubcom_rlipscpolymorph\src\polymorph\runtimeconstruction.nim
to ...\.nimble\pkgs\polymorph-0.3.1\polymorph\runtimeconstruction.nim
Copying file
...\AppData\Local\Temp\nimble_10968\githubcom_rlipscpolymorph\src\polymorph\sealing.nim
to ...\.nimble\pkgs\polymorph-0.3.1\polymorph\sealing.nim
Copying file
...\AppData\Local\Temp\nimble_10968\githubcom_rlipscpolymorph\src\polymorph\sharedtypes.nim
to ...\.nimble\pkgs\polymorph-0.3.1\polymorph\sharedtypes.nim
Copying file
...\AppData\Local\Temp\nimble_10968\githubcom_rlipscpolymorph\src\polymorph\statechanges.nim
to ...\.nimble\pkgs\polymorph-0.3.1\polymorph\statechanges.nim
Copying file
...\AppData\Local\Temp\nimble_10968\githubcom_rlipscpolymorph\src\polymorph\systems.nim
to ...\.nimble\pkgs\polymorph-0.3.1\polymorph\systems.nim
Copying file
...\AppData\Local\Temp\nimble_10968\githubcom_rlipscpolymorph\src\polymorph.nim
to ...\.nimble\pkgs\polymorph-0.3.1\polymorph.nim
Copying file
...\AppData\Local\Temp\nimble_10968\githubcom_rlipscpolymorph\polymorph.nimble
to ...\.nimble\pkgs\polymorph-0.3.1\polymorph.nimble
Success: polymorph installed successfully.
Run
