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Write Reusable, Composable and Modular R Code

v1.2.1 · Nov 28, 2025 · MIT + file LICENSE
CRAN GitHub Mirror

Description

A modern module system for R. Organise code into hierarchical, composable, reusable modules, and use it effortlessly across projects via a flexible, declarative dependency loading syntax.

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CRAN Check Status

1 ERROR
7 WARNING
6 OK
Show all 14 flavors
Flavor Status
r-devel-linux-x86_64-debian-clang WARNING
r-devel-linux-x86_64-debian-gcc WARNING
r-devel-linux-x86_64-fedora-clang WARNING
r-devel-linux-x86_64-fedora-gcc WARNING
r-devel-macos-arm64 WARNING
r-devel-windows-x86_64 WARNING
r-oldrel-macos-arm64 OK
r-oldrel-macos-x86_64 OK
r-oldrel-windows-x86_64 ERROR
r-patched-linux-x86_64 WARNING
r-release-linux-x86_64 OK
r-release-macos-arm64 OK
r-release-macos-x86_64 OK
r-release-windows-x86_64 OK
Check details (8 non-OK)
WARNING r-devel-linux-x86_64-debian-clang

compiled code

File ‘box/libs/box.so’:
  Found non-API calls to R: ‘R_UnboundValue’, ‘Rf_findVarInFrame’
This entry point may be removed soon:
‘Rf_findVarInFrame’

Compiled code should not call non-API entry points in R.

See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual,
and section ‘Moving into C API compliance’ for issues with the use of
non-API entry points.
WARNING r-devel-linux-x86_64-debian-gcc

compiled code

File ‘box/libs/box.so’:
  Found non-API calls to R: ‘R_UnboundValue’, ‘Rf_findVarInFrame’
This entry point may be removed soon:
‘Rf_findVarInFrame’

Compiled code should not call non-API entry points in R.

See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual,
and section ‘Moving into C API compliance’ for issues with the use of
non-API entry points.
WARNING r-devel-linux-x86_64-fedora-clang

compiled code

File ‘box/libs/box.so’:
  Found non-API calls to R: ‘R_UnboundValue’, ‘Rf_findVarInFrame’
This entry point may be removed soon:
‘Rf_findVarInFrame’

Compiled code should not call non-API entry points in R.

See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual,
and section ‘Moving into C API compliance’ for issues with the use of
non-API entry points.
WARNING r-devel-linux-x86_64-fedora-gcc

compiled code

File ‘box/libs/box.so’:
  Found non-API calls to R: ‘R_UnboundValue’, ‘Rf_findVarInFrame’
This entry point may be removed soon:
‘Rf_findVarInFrame’

Compiled code should not call non-API entry points in R.

See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual,
and section ‘Moving into C API compliance’ for issues with the use of
non-API entry points.
WARNING r-devel-macos-arm64

compiled code

File ‘box/libs/box.so’:
  Found non-API call to R: ‘Rf_findVarInFrame’
This entry point may be removed soon.

Compiled code should not call non-API entry points in R.

See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual,
and section ‘Moving into C API compliance’ for issues with the use of
non-API entry points.
WARNING r-devel-windows-x86_64

compiled code

File 'box/libs/x64/box.dll':
  Found non-API calls to R: 'R_UnboundValue', 'Rf_findVarInFrame'
This entry point may be removed soon:
'Rf_findVarInFrame'

Compiled code should not call non-API entry points in R.

See 'Writing portable packages' in the 'Writing R Extensions' manual,
and section 'Moving into C API compliance' for issues with the use of
non-API entry points.
ERROR r-oldrel-windows-x86_64

re-building of vignette outputs

Error(s) in re-building vignettes:
--- re-building 'box.rmd' using rmarkdown
--- finished re-building 'box.rmd'

--- re-building 'compiled-code.rmd' using rmarkdown
--- finished re-building 'compiled-code.rmd'

--- re-building 'contributing.rmd' using rmarkdown
--- finished re-building 'contributing.rmd'

--- re-building 'faq.rmd' using rmarkdown
--- finished re-building 'faq.rmd'

--- re-building 'migration.rmd' using rmarkdown
--- finished re-building 'migration.rmd'

--- re-building 'mod-envs.rmd' using rmarkdown
File environment-schema.png not found in resource path
Error: processing vignette 'mod-envs.rmd' failed with diagnostics:
pandoc document conversion failed with error 99
--- failed re-building 'mod-envs.rmd'

--- re-building 'related.rmd' using rmarkdown
--- finished re-building 'related.rmd'

--- re-building 'testing.rmd' using rmarkdown
--- finished re-building 'testing.rmd'

SUMMARY: processing the following file failed:
  'mod-envs.rmd'

Error: Vignette re-building failed.
Execution halted
WARNING r-patched-linux-x86_64

compiled code

File ‘box/libs/box.so’:
  Found non-API calls to R: ‘R_UnboundValue’, ‘Rf_findVarInFrame’
This entry point may be removed soon:
‘Rf_findVarInFrame’

Compiled code should not call non-API entry points in R.

See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual,
and section ‘Moving into C API compliance’ for issues with the use of
non-API entry points.

Check History

ERROR 13 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE Mar 10, 2026
ERROR r-oldrel-windows-x86_64

re-building of vignette outputs

Error(s) in re-building vignettes:
--- re-building 'box.rmd' using rmarkdown
--- finished re-building 'box.rmd'

--- re-building 'compiled-code.rmd' using rmarkdown
--- finished re-building 'compiled-code.rmd'

--- re-building 'contributing.rmd' usin
...[truncated]...
rkdown
--- finished re-building 'related.rmd'

--- re-building 'testing.rmd' using rmarkdown
--- finished re-building 'testing.rmd'

SUMMARY: processing the following file failed:
  'mod-envs.rmd'

Error: Vignette re-building failed.
Execution halted

Reverse Dependencies (15)

imports

SouthParkRshiny box.lsp rhino

suggests

artma box.linters common covr cucumber interface just.install kindling muttest shiny.telemetry shinytest2 stenographer

Dependency Network

Dependencies Reverse dependencies SouthParkRshiny box.lsp rhino artma box.linters common covr cucumber interface just.install kindling muttest shiny.telemetry shinytest2 stenographer box

Version History

new 1.2.1 Mar 10, 2026
updated 1.2.1 ← 1.2.0 diff Nov 27, 2025
updated 1.2.0 ← 1.1.3 diff Feb 6, 2024
updated 1.1.3 ← 1.1.2 diff May 1, 2023
updated 1.1.2 ← 1.1.1 diff May 10, 2022
updated 1.1.1 ← 1.1.0 diff Apr 22, 2022
updated 1.1.0 ← 1.0.2 diff Sep 12, 2021
updated 1.0.2 ← 1.0.1 diff Apr 21, 2021
updated 1.0.1 ← 1.0.0 diff Mar 19, 2021
new 1.0.0 Feb 11, 2021