# \#package

**URL:** https://discourse.julialang.org/tag/package/4.md

[Latest](https://discourse.julialang.org/latest.md) · [Categories](https://discourse.julialang.org/categories.md) · [Tags](https://discourse.julialang.org/tags.md)

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## [Alternatives for lazy/out-of-core data processing in Julia](https://discourse.julialang.org/t/alternatives-for-lazy-out-of-core-data-processing-in-julia/139631)

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**Author:** [@phchavesmaia](https://discourse.julialang.org/u/phchavesmaia)\
**Replies:** 4\
**Last updated:** [September 23, 2026, 10:11pm UTC](https://discourse.julialang.org/t/alternatives-for-lazy-out-of-core-data-processing-in-julia/139631 "2026-09-23T22:11:47Z")

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Hi all, I’ve recently been working with some fairly I/O-intensive workflows and found that DuckDB.jl tends to be the recommended option for larger-than-memory data processing. That said, I don’t particularly enjoy writ…

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## [\[ANN\] KaimonSlate.jl: a reactive environment for ambitious work](https://discourse.julialang.org/t/ann-kaimonslate-jl-a-reactive-environment-for-ambitious-work/139185)

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**Author:** [@kahliburke](https://discourse.julialang.org/u/kahliburke)\
**Replies:** 21\
**Last updated:** [September 23, 2026, 7:27pm UTC](https://discourse.julialang.org/t/ann-kaimonslate-jl-a-reactive-environment-for-ambitious-work/139185 "2026-09-23T19:27:53Z")

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I’ve been building KaimonSlate.jl, a reactive computing environment for Julia, for a while now. It’s fully available in General, and I’d like to take a quick tour of it here. Julia got rid of the two-language problem. S…

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## [Cannot download general registry due to a corporate antivirus](https://discourse.julialang.org/t/cannot-download-general-registry-due-to-a-corporate-antivirus/139605)

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**Author:** [@LaurentPlagne](https://discourse.julialang.org/u/LaurentPlagne)\
**Replies:** 7\
**Last updated:** [September 23, 2026, 2:02pm UTC](https://discourse.julialang.org/t/cannot-download-general-registry-due-to-a-corporate-antivirus/139605 "2026-09-23T14:02:46Z")

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A change in my corporate antivirus cause problem when I try to install new packages. I tried to change JULIA\_PKG\_DOWNLOAD\_TIMEOUT and Curl.CURLOPT\_LOW\_SPEED limits but it seems to have no effect: julia\> ENV\["JULIA\_PKG\_…

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## [\[ANN\] DocumenterLandingPage.jl, a VitePress-style landing page for Documenter.jl](https://discourse.julialang.org/t/ann-documenterlandingpage-jl-a-vitepress-style-landing-page-for-documenter-jl/138819)

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**Author:** [@csvance](https://discourse.julialang.org/u/csvance)\
**Replies:** 14\
**Last updated:** [September 22, 2026, 6:57pm UTC](https://discourse.julialang.org/t/ann-documenterlandingpage-jl-a-vitepress-style-landing-page-for-documenter-jl/138819 "2026-09-22T18:57:56Z")

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I am happy to share DocumenterLandingPage.jl, a small Documenter.jl plugin that renders a VitePress-style landing page (hero plus emoji feature tiles) straight from the YAML frontmatter block a page carries in a @raw htm…

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## [Community Interest Check: LLMs from Scratch in Pure Julia](https://discourse.julialang.org/t/community-interest-check-llms-from-scratch-in-pure-julia/121796)

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**Author:** [@mantzaris](https://discourse.julialang.org/u/mantzaris)\
**Replies:** 76\
**Last updated:** [September 22, 2026, 2:14pm UTC](https://discourse.julialang.org/t/community-interest-check-llms-from-scratch-in-pure-julia/121796 "2026-09-22T14:14:05Z")

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Is there active interest in developing LLMs from the ground up in pure Julia or is there ongoing work on this that I have not come across? Current I’ve been reviewing existing Julia LLM projects: Transformers.jl (~1K …

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## [Generating an unstructured triangle grid](https://discourse.julialang.org/t/generating-an-unstructured-triangle-grid/138784)

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**Author:** [@omgplshelp](https://discourse.julialang.org/u/omgplshelp)\
**Replies:** 6\
**Last updated:** [September 22, 2026, 1:10pm UTC](https://discourse.julialang.org/t/generating-an-unstructured-triangle-grid/138784 "2026-09-22T13:10:08Z")

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Hi, I’m trying to generate an unstructured triangle grid with an area constraint for data defined on irregular polygonal domains. I have coordinate data for the boundaries of two polygons respectively and for measuring p…

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## [\[ANN\] XKCDMakie.jl](https://discourse.julialang.org/t/ann-xkcdmakie-jl/139405)

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**Author:** [@aryavorskiy](https://discourse.julialang.org/u/aryavorskiy)\
**Replies:** 3\
**Last updated:** [September 19, 2026, 9:27am UTC](https://discourse.julialang.org/t/ann-xkcdmakie-jl/139405 "2026-09-19T09:27:01Z")

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Finally, a worthy competitor to Matplotlib’s xkcd mode Introducing XKCDMakie.jl, a new Makie.jl “backend” that produces figures with a hand-drawn look and feel. Paste into your REPL to install: using Pkg; Pkg.add("X…

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## [Anyone crazy enough to develop a pure Julia GUI toolbox?](https://discourse.julialang.org/t/anyone-crazy-enough-to-develop-a-pure-julia-gui-toolbox/74002)

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**Author:** [@SergeantMike67](https://discourse.julialang.org/u/SergeantMike67)\
**Replies:** 203\
**Last updated:** [September 17, 2026, 6:33pm UTC](https://discourse.julialang.org/t/anyone-crazy-enough-to-develop-a-pure-julia-gui-toolbox/74002 "2026-09-17T18:33:51Z")

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I clearly have had way too much time on my hands lately because I have begun to investigate developing a gui toolbox and widgets similar to GTK or Qt only written in pure Julia. My reasons for this are: that for the li…

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## [Package technical spec feedback](https://discourse.julialang.org/t/package-technical-spec-feedback/139056)

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**Author:** [@mthelm85](https://discourse.julialang.org/u/mthelm85)\
**Replies:** 1\
**Last updated:** [September 16, 2026, 2:18pm UTC](https://discourse.julialang.org/t/package-technical-spec-feedback/139056 "2026-09-16T14:18:48Z")

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About 6 months ago, I threw together a quick & dirty (unregistered) package that I called DataMimic for generating synthetic data, based on a real dataset. It was okay for what I needed it for at the time, but it’s defin…

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## [AiresDB: We built a database engine in Julia for our university capstone project](https://discourse.julialang.org/t/airesdb-we-built-a-database-engine-in-julia-for-our-university-capstone-project/139476)

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**Author:** [@aires-id](https://discourse.julialang.org/u/aires-id)\
**Replies:** 4\
**Last updated:** [September 16, 2026, 1:46pm UTC](https://discourse.julialang.org/t/airesdb-we-built-a-database-engine-in-julia-for-our-university-capstone-project/139476 "2026-09-16T13:46:58Z")

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Hi everyone! We are three Oil & Gas Engineering students from Institut Teknologi Sumatera (ITERA), Indonesia, and for our university capstone project we decided to do something slightly unusual: build a database engine…

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## [\[ANN\] Enumlib.jl: a package for derivative structure enumeration](https://discourse.julialang.org/t/ann-enumlib-jl-a-package-for-derivative-structure-enumeration/139475)

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**Author:** [@Gus\_Hart](https://discourse.julialang.org/u/Gus_Hart)\
**Replies:** 0\
**Last updated:** [September 15, 2026, 2:29am UTC](https://discourse.julialang.org/t/ann-enumlib-jl-a-package-for-derivative-structure-enumeration/139475 "2026-09-15T02:29:31Z")

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Most users of my original enumlib will go on calling it (this new code) from inside Python, obliviously—so this probably appeals only to a handful of computational materials scientists here. But it is the culmination of …

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## [PerfChecker.jl is reaching a good state and we're looking for ~~labrats~~ testers/users](https://discourse.julialang.org/t/perfchecker-jl-is-reaching-a-good-state-and-were-looking-for-labrats-testers-users/114897)

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**Author:** [@Azzaare](https://discourse.julialang.org/u/Azzaare)\
**Replies:** 1\
**Last updated:** [September 14, 2026, 5:16am UTC](https://discourse.julialang.org/t/perfchecker-jl-is-reaching-a-good-state-and-were-looking-for-labrats-testers-users/114897 "2026-09-14T05:16:01Z")

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Hi there! Years ago, I announced a proof of concept package to handle testing performances over versions: PerfChecker.jl We’re reaching the point were the package is ready to be used (v"0.2.0" waiting for merge). And w…

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## [\[ANN\] Paulimorphic.jl (v0.1.0): Pauli-operator algebra, fermion-to-qubit encodings, and more](https://discourse.julialang.org/t/ann-paulimorphic-jl-v0-1-0-pauli-operator-algebra-fermion-to-qubit-encodings-and-more/139410)

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**Author:** [@frankwswang](https://discourse.julialang.org/u/frankwswang)\
**Replies:** 1\
**Last updated:** [September 13, 2026, 11:09am UTC](https://discourse.julialang.org/t/ann-paulimorphic-jl-v0-1-0-pauli-operator-algebra-fermion-to-qubit-encodings-and-more/139410 "2026-09-13T11:09:47Z")

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I’m happy to announce Paulimorphic.jl, a package for constructing, transforming, and analyzing Pauli operators. The Julia ecosystem already has a few well-established packages built on Pauli operators, e.g., PauliStrings…

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## [Building a system image using Julia 1.13 fails on Windows](https://discourse.julialang.org/t/building-a-system-image-using-julia-1-13-fails-on-windows/139436)

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**Author:** [@ufechner7](https://discourse.julialang.org/u/ufechner7)\
**Replies:** 0\
**Last updated:** [September 13, 2026, 9:18am UTC](https://discourse.julialang.org/t/building-a-system-image-using-julia-1-13-fails-on-windows/139436 "2026-09-13T09:18:24Z")

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Building a system image on Windows 10 fails if I use Julia 1.13, it succeeds using Julia 1.12. On Julia 1.12 it needs about 34 GB RAM (RAM+pagefile) and 30 minutes. On Julia 1.13 it fails even with 54 GB RAM after 1h:2…

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## [QuartzHDL v0.2.0 – Write FPGA logic in Julia, run it in Julia, compile it to Verilog](https://discourse.julialang.org/t/quartzhdl-v0-2-0-write-fpga-logic-in-julia-run-it-in-julia-compile-it-to-verilog/139233)

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**Author:** [@mchitre](https://discourse.julialang.org/u/mchitre)\
**Replies:** 2\
**Last updated:** [September 11, 2026, 12:23pm UTC](https://discourse.julialang.org/t/quartzhdl-v0-2-0-write-fpga-logic-in-julia-run-it-in-julia-compile-it-to-verilog/139233 "2026-09-11T12:23:20Z")

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Algorithmic logic in an FPGA often is a port from an implementation in Julia or Python or MATLAB, rewritten as hardware. Porting and testing can be tricky, and debugging the Verilog implementation can be painful. Wouldn’…

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## [What is the current best practice to fix a broken package install?](https://discourse.julialang.org/t/what-is-the-current-best-practice-to-fix-a-broken-package-install/139320)

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**Author:** [@Benny](https://discourse.julialang.org/u/Benny)\
**Replies:** 5\
**Last updated:** [September 10, 2026, 8:47pm UTC](https://discourse.julialang.org/t/what-is-the-current-best-practice-to-fix-a-broken-package-install/139320 "2026-09-10T20:47:38Z")

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Haven’t run into this personally yet, but it’s been on my mind. Say Package@v1.2.3 is not working properly in a given environment, but I do not know why and want to reinstall it and its dependencies in case a file got co…

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## [\[ANN\] jlrs 0.24 and JlrsCore 0.8: StaticArrays support, safety updates, and more!](https://discourse.julialang.org/t/ann-jlrs-0-24-and-jlrscore-0-8-staticarrays-support-safety-updates-and-more/139339)

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**Author:** [@Taaitaaiger](https://discourse.julialang.org/u/Taaitaaiger)\
**Replies:** 0\
**Last updated:** [September 10, 2026, 3:01pm UTC](https://discourse.julialang.org/t/ann-jlrs-0-24-and-jlrscore-0-8-staticarrays-support-safety-updates-and-more/139339 "2026-09-10T15:01:21Z")

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jlrs is a crate for the Rust programming language for interop between Rust and Julia, version 0.24 brings several changes and new features. The tutorial has been updated to this new version. Version support Julia versio…

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## [ScientificFitting.jl v0.1: explicit uncertainties, diagnostics, profiles, and Makie figures](https://discourse.julialang.org/t/scientificfitting-jl-v0-1-explicit-uncertainties-diagnostics-profiles-and-makie-figures/139223)

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**Author:** [@Amin-El-Sayed](https://discourse.julialang.org/u/Amin-El-Sayed)\
**Replies:** 2\
**Last updated:** [September 10, 2026, 12:24pm UTC](https://discourse.julialang.org/t/scientificfitting-jl-v0-1-explicit-uncertainties-diagnostics-profiles-and-makie-figures/139223 "2026-09-10T12:24:21Z")

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Hi everyone, I’ve just released ScientificFitting.jl v0.1, my first public Julia package. It aims to make statistically careful scientific fitting fast to write and enjoyable to use, without hiding uncertainty models or…

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## [\[ANN\] MachineLearningForecast.jl: forecasting with any MLJ regressor](https://discourse.julialang.org/t/ann-machinelearningforecast-jl-forecasting-with-any-mlj-regressor/139302)

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**Author:** [@Resul.Akay](https://discourse.julialang.org/u/Resul.Akay)\
**Replies:** 3\
**Last updated:** [September 10, 2026, 10:04am UTC](https://discourse.julialang.org/t/ann-machinelearningforecast-jl-forecasting-with-any-mlj-regressor/139302 "2026-09-10T10:04:13Z")

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MachineLearningForecast.jl: Forecasting with any MLJ regressor I’m happy to share MachineLearningForecast.jl, a package for time-series forecasting that turns any MLJ Deterministic regressor into a forecaster. EvoTrees, …

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## [\[ANN\] AtmosphericTurbulenceSimulator.jl](https://discourse.julialang.org/t/ann-atmosphericturbulencesimulator-jl/137609)

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**Author:** [@aryavorskiy](https://discourse.julialang.org/u/aryavorskiy)\
**Replies:** 2\
**Last updated:** [September 9, 2026, 1:19pm UTC](https://discourse.julialang.org/t/ann-atmosphericturbulencesimulator-jl/137609 "2026-09-09T13:19:51Z")

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I designed this tool primarily for my own research, but now it is mostly ready for regular use, so now I am happily announcing… AtmosphericTurbulenceSimulator.jl \[not registered yet\] — a package that simulates the effec…

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## [ModelingToolkit: Internal error in runtime](https://discourse.julialang.org/t/modelingtoolkit-internal-error-in-runtime/139291)

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**Author:** [@ufechner7](https://discourse.julialang.org/u/ufechner7)\
**Replies:** 2\
**Last updated:** [September 9, 2026, 9:39am UTC](https://discourse.julialang.org/t/modelingtoolkit-internal-error-in-runtime/139291 "2026-09-09T09:39:43Z")

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When creating a system image of Tethers.jl on Windows, I got this error: Precompiling packages finished. 503 dependencies successfully precompiled in 342 seconds. 26 already precompiled. 23 dependencies precompiled …

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## [\[Omniscape\] Convergence error while trying to run it on almost any raster](https://discourse.julialang.org/t/omniscape-convergence-error-while-trying-to-run-it-on-almost-any-raster/138580)

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**Author:** [@GimbalLock](https://discourse.julialang.org/u/GimbalLock)\
**Replies:** 6\
**Last updated:** [September 8, 2026, 11:03pm UTC](https://discourse.julialang.org/t/omniscape-convergence-error-while-trying-to-run-it-on-almost-any-raster/138580 "2026-09-08T23:03:56Z")

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Hello, I am trying to run the Omniscape example given on its documentation page: Examples · Omniscape.jl When I get to the line where I actually start the Omniscape algorithm, it errors out with the message: “CG solver …

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## [Invalidations caused by FixedPointNumbers](https://discourse.julialang.org/t/invalidations-caused-by-fixedpointnumbers/139232)

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**Author:** [@ufechner7](https://discourse.julialang.org/u/ufechner7)\
**Replies:** 1\
**Last updated:** [September 6, 2026, 10:21pm UTC](https://discourse.julialang.org/t/invalidations-caused-by-fixedpointnumbers/139232 "2026-09-06T22:21:48Z")

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The FixedPointNumbers package is causing many invalidations, even though it does not engage in type piracy. For details, see: Loading FixedPointNumbers invalidates ~7,700 precompiled method instances (7x slower first mtk…

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## [\[ANN\] GeoStats.jl - Geospatial Data Science and Geostatistical Modeling in Julia](https://discourse.julialang.org/t/ann-geostats-jl-geospatial-data-science-and-geostatistical-modeling-in-julia/101054)

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**Author:** [@juliohm](https://discourse.julialang.org/u/juliohm)\
**Replies:** 52\
**Last updated:** [September 5, 2026, 11:34pm UTC](https://discourse.julialang.org/t/ann-geostats-jl-geospatial-data-science-and-geostatistical-modeling-in-julia/101054 "2026-09-05T23:34:22Z")

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This topic will be used for future release updates of the GeoStats.jl framework. Past topics can be found at v0.10, v0.11, v0.14, v0.18, v0.24, v0.33 and v0.36. OVERVIEW GeoStats.jl v0.40 is out with revised docume…

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## [Moving a package to new repository](https://discourse.julialang.org/t/moving-a-package-to-new-repository/139213)

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**Author:** [@aumpierre-unb](https://discourse.julialang.org/u/aumpierre-unb)\
**Replies:** 4\
**Last updated:** [September 4, 2026, 11:11pm UTC](https://discourse.julialang.org/t/moving-a-package-to-new-repository/139213 "2026-09-04T23:11:11Z")

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I am trying to move my a package to a new repo. I sent a PR and after an identity confirmation step I was told that I “need to make all of the existing treehashes available in the new repo.” I have no clue what it means.…

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## [API design help: Wrapping ITensorMPS structs and extending it to my package](https://discourse.julialang.org/t/api-design-help-wrapping-itensormps-structs-and-extending-it-to-my-package/139164)

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**Author:** [@Gautameshwar](https://discourse.julialang.org/u/Gautameshwar)\
**Replies:** 2\
**Last updated:** [September 4, 2026, 2:36am UTC](https://discourse.julialang.org/t/api-design-help-wrapping-itensormps-structs-and-extending-it-to-my-package/139164 "2026-09-04T02:36:12Z")

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Hi Julia community! I am currently developing a package, ProcessTensors.jl, that uses an MPS/MPO architecture to construct process tensors and simulate non-Markovian quantum dynamics. I built this package on top of the …

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## [HDF5.jl variable length string](https://discourse.julialang.org/t/hdf5-jl-variable-length-string/98808)

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**Author:** [@thomaskroi1996](https://discourse.julialang.org/u/thomaskroi1996)\
**Replies:** 10\
**Last updated:** [April 4, 2024, 10:38pm UTC](https://discourse.julialang.org/t/hdf5-jl-variable-length-string/98808 "2024-04-04T22:38:46Z")

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Hello everyone! I am currently trying to translate i python code to julia! What i am trying to do, broken down, is creating a dataset where dtype=“String”. I know that to do that in python you have to declare a special …

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## [Auto-convert Vector{Type} to special container type](https://discourse.julialang.org/t/auto-convert-vector-type-to-special-container-type/139045)

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**Author:** [@pekuntzpuglia](https://discourse.julialang.org/u/pekuntzpuglia)\
**Replies:** 6\
**Last updated:** [September 1, 2026, 12:36pm UTC](https://discourse.julialang.org/t/auto-convert-vector-type-to-special-container-type/139045 "2026-09-01T12:36:07Z")

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I’m trying to use this unofficial CasADi interface in Julia since the official interface seems to be a long way from working (couldn’t get it installed in Julia 1.10, as stated in Project.toml). I’m having a hard time ha…

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## [With DynamicPolynomials and non-commutative variables, (x+y)\*z does not work](https://discourse.julialang.org/t/with-dynamicpolynomials-and-non-commutative-variables-x-y-z-does-not-work/139046)

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**Author:** [@The\_Suffocated](https://discourse.julialang.org/u/The_Suffocated)\
**Replies:** 4\
**Last updated:** [August 30, 2026, 3:51pm UTC](https://discourse.julialang.org/t/with-dynamicpolynomials-and-non-commutative-variables-x-y-z-does-not-work/139046 "2026-08-30T15:51:52Z")

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How to right-multiply x+y by z in DynamicPolynomials when x, y, z are non-commutative? I have tried (x+y)\*z, but Julia returns an ERROR: MethodError: no method matching map\_exponents(::typeof(+), ::MonomialVector{…}, ::V…

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## [Merging and formatting cells in Excel from Julia](https://discourse.julialang.org/t/merging-and-formatting-cells-in-excel-from-julia/18786)

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**Author:** [@ahmetumutdurmus](https://discourse.julialang.org/u/ahmetumutdurmus)\
**Replies:** 3\
**Last updated:** [August 30, 2026, 2:55pm UTC](https://discourse.julialang.org/t/merging-and-formatting-cells-in-excel-from-julia/18786 "2026-08-30T14:55:30Z")

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Hello, Is there a way of merging cells, formatting and aligning cell contents in an Excel file using Julia? Using a package is also fine. I am currently using XLSX.jl to write to Excel files yet for merging, formatting …

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