why do people look down at lua although its as good or even better than other languages
yea it has downsides but you can just implement it into C for example for low level power. so i dont get all the hate
https://redd.it/1qx8v0c
@r_lua
yea it has downsides but you can just implement it into C for example for low level power. so i dont get all the hate
https://redd.it/1qx8v0c
@r_lua
Reddit
From the lua community on Reddit
Explore this post and more from the lua community
🦒 Roblox Devs Wanted!
Hire, Sell, Collab & Build — All in One Fun Hub!
Join r/DevsRus today and let your games shine!
https://redd.it/1qxjbex
@r_lua
Hire, Sell, Collab & Build — All in One Fun Hub!
Join r/DevsRus today and let your games shine!
https://redd.it/1qxjbex
@r_lua
Reddit
From the lua community on Reddit
Explore this post and more from the lua community
I need help please
I need the player collects 5 patient records scattered throughout the asylum, each a clickable object that disappears when picked up. A RecordsGui is displayed on the screen: first, the 'RecordsLabel' appears showing 'Records'; as each record is collected, the 'TotalRecordsLabel' updates in real time, counting up from '0 / 5' to '5 / 5', reflecting the player's progress. The GUI visually reacts to each pickup and changes the 1-5 number. I tried myself and with AI but it was no use. If someone can help me then I'm grateful!!!!
https://redd.it/1r07mru
@r_lua
I need the player collects 5 patient records scattered throughout the asylum, each a clickable object that disappears when picked up. A RecordsGui is displayed on the screen: first, the 'RecordsLabel' appears showing 'Records'; as each record is collected, the 'TotalRecordsLabel' updates in real time, counting up from '0 / 5' to '5 / 5', reflecting the player's progress. The GUI visually reacts to each pickup and changes the 1-5 number. I tried myself and with AI but it was no use. If someone can help me then I'm grateful!!!!
https://redd.it/1r07mru
@r_lua
Reddit
From the lua community on Reddit
Explore this post and more from the lua community
I built a Lua/Luau-first transpiler with static analysis and no runtime helpers
I built Hordr, a Lua/Luau-first frontend transpiler.
It adds flow-sensitive analysis, explicit modules, a Luau-compatible type checker,
and safe optimizations, while generating clean, readable Lua with no runtime helpers
or semantic changes.
This is not a Lua replacement and not a new runtime.
It’s a conservative tooling layer for larger Lua codebases
Repo: https://github.com/Bladiostudio/Hordr
Feedback and criticism welcome.
https://redd.it/1r0lg7c
@r_lua
I built Hordr, a Lua/Luau-first frontend transpiler.
It adds flow-sensitive analysis, explicit modules, a Luau-compatible type checker,
and safe optimizations, while generating clean, readable Lua with no runtime helpers
or semantic changes.
This is not a Lua replacement and not a new runtime.
It’s a conservative tooling layer for larger Lua codebases
Repo: https://github.com/Bladiostudio/Hordr
Feedback and criticism welcome.
https://redd.it/1r0lg7c
@r_lua
GitHub
GitHub - Bladiostudio/Hordr: Lua/Luau-first frontend transpiler with flow-sensitive analysis, explicit modules, a Luau-compatible…
Lua/Luau-first frontend transpiler with flow-sensitive analysis, explicit modules, a Luau-compatible type checker, safe optimizations, and clean diagnostics. Generates readable, idiomatic Lua with ...
ECS like behavior with objects in Lua is possible?
Most of the time, it's considered that OOP has poor performance because of the way it works internally. Arrays and data make use of the CPU's cache memory while objects are scattared across the memory and in some instances, each object has it's own copy of a method from the constructor. But in Lua... I heard that if you write your classes correctly, the "methods" are cached. So, in the end, if you run
So, in the context of LuaJIT, how accurate is this? As soon as I have time I'mma go benchmark this idea, but curious to learn more about that stuff. Thank you!
https://redd.it/1r4rdm5
@r_lua
Most of the time, it's considered that OOP has poor performance because of the way it works internally. Arrays and data make use of the CPU's cache memory while objects are scattared across the memory and in some instances, each object has it's own copy of a method from the constructor. But in Lua... I heard that if you write your classes correctly, the "methods" are cached. So, in the end, if you run
for obj in objs do obj:something() end it's like you esentially iterate through tables of data and call the same referenced function on them, right?So, in the context of LuaJIT, how accurate is this? As soon as I have time I'mma go benchmark this idea, but curious to learn more about that stuff. Thank you!
https://redd.it/1r4rdm5
@r_lua
Reddit
From the lua community on Reddit
Explore this post and more from the lua community
Lua Script
I've used WatchMaker for some time until my Pixel 3 watch was not compatible. With the new and updated version, I find some of the menu noscripts don't transfer to my watch. Can someone help with these issues especially if I need to write my own noscript?
1. Ring corners stay round instead of converting to straight lines on the ends.
2. Rings won't show a gradient for the first two chosen colors
3. Even if I choose the noscript to show the phone battery level or percentage it reverts back to the watch battery.
Thanks!
https://redd.it/1r4mo83
@r_lua
I've used WatchMaker for some time until my Pixel 3 watch was not compatible. With the new and updated version, I find some of the menu noscripts don't transfer to my watch. Can someone help with these issues especially if I need to write my own noscript?
1. Ring corners stay round instead of converting to straight lines on the ends.
2. Rings won't show a gradient for the first two chosen colors
3. Even if I choose the noscript to show the phone battery level or percentage it reverts back to the watch battery.
Thanks!
https://redd.it/1r4mo83
@r_lua
Reddit
From the lua community on Reddit
Explore this post and more from the lua community
Lua 5.5.0 - "for-loop variables are read only"
Currently working on integrating Lua 5.5.0 into [OneLuaPro](https://github.com/OneLuaPro). This new "[for-loop variables are read-only](https://www.lua.org/manual/5.5/readme.html#changes)" feature is really annoying, as it impacts a lot of existing code:
[C:\...\_IMPLEMENTED]> for /r %f in (*.lua) do @(C:\misc\OneLuaPro\build64\OneLuaPro-5.4.8.3-x64\bin\luac -p "%f" >nul 2>&1 || echo Lua 5.5 Problem in: %f)
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\ldoc\ldoc\html.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\ldoc\ldoc\markdown.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\ldoc\tests\mod1.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\ldoc\tests\example\style\simple.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\ldoc\tests\factory\factory.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\lua-cjson\tests\bench.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\lua-openssl\test\4.pkey.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\luacheck\spec\samples\compound_operators.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\luacheck\spec\samples\python_code.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\luacheck\spec\samples\utf8_error.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\luacheck\src\luacheck\standards.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\luautf8\parseucd.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\wxlua\wxLua\bindings\any-bind-sync.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\wxlua\wxLua\bindings\genwxbind.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\wxlua\wxLua\bindings\stc-bind-sync.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\wxlua\wxLua\samples\editor.wx.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\wxlua\wxLua\samples\wxluasudoku.wx.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\ZeroBraneStudio\api\lua\corona.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\ZeroBraneStudio\build\messages.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\ZeroBraneStudio\lualibs\luadist.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\ZeroBraneStudio\lualibs\dist\package.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\ZeroBraneStudio\lualibs\luacheck\standards.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\ZeroBraneStudio\lualibs\luainspect\init.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\ZeroBraneStudio\src\util.lua
...
Am I actually the first person to discover this?
https://redd.it/1r3nhu5
@r_lua
Currently working on integrating Lua 5.5.0 into [OneLuaPro](https://github.com/OneLuaPro). This new "[for-loop variables are read-only](https://www.lua.org/manual/5.5/readme.html#changes)" feature is really annoying, as it impacts a lot of existing code:
[C:\...\_IMPLEMENTED]> for /r %f in (*.lua) do @(C:\misc\OneLuaPro\build64\OneLuaPro-5.4.8.3-x64\bin\luac -p "%f" >nul 2>&1 || echo Lua 5.5 Problem in: %f)
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\ldoc\ldoc\html.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\ldoc\ldoc\markdown.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\ldoc\tests\mod1.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\ldoc\tests\example\style\simple.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\ldoc\tests\factory\factory.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\lua-cjson\tests\bench.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\lua-openssl\test\4.pkey.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\luacheck\spec\samples\compound_operators.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\luacheck\spec\samples\python_code.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\luacheck\spec\samples\utf8_error.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\luacheck\src\luacheck\standards.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\luautf8\parseucd.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\wxlua\wxLua\bindings\any-bind-sync.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\wxlua\wxLua\bindings\genwxbind.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\wxlua\wxLua\bindings\stc-bind-sync.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\wxlua\wxLua\samples\editor.wx.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\wxlua\wxLua\samples\wxluasudoku.wx.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\ZeroBraneStudio\api\lua\corona.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\ZeroBraneStudio\build\messages.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\ZeroBraneStudio\lualibs\luadist.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\ZeroBraneStudio\lualibs\dist\package.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\ZeroBraneStudio\lualibs\luacheck\standards.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\ZeroBraneStudio\lualibs\luainspect\init.lua
Lua 5.5 Problem in: C:\misc\_IMPLEMENTED\ZeroBraneStudio\src\util.lua
...
Am I actually the first person to discover this?
https://redd.it/1r3nhu5
@r_lua
GitHub
OneLuaPro
OneLuaPro has 55 repositories available. Follow their code on GitHub.
Lua as the IR between AI and Spreadsheets
I've been building a spreadsheet engine in Rust (mlua), and I wanted to share a pattern that's been working surprisingly well: using Lua as the source of truth for AI-generated models.
**The problem**: When you ask an LLM to build a financial model in Excel, it's a black box. You get a .xlsx with hundreds of hidden dependencies. If a formula is wrong, you're hunting through cells. There's no diff, no code review, and no way to replay the construction.
What we do instead: In VisiGrid, AI agents don't touch cells. They write Lua noscripts that build the grid.
Claude generates this instead of a binary blob
set("A3", "Base Revenue")
set("B3", 100000)
set("A4", "Growth Rate")
set("B4", 0.05)
for i = 1, 12 do
local row = 6 + i
set("A" .. row, "Month " .. i)
set("B" .. row, i == 1
and "=B3"
or "=B" .. (row-1) .. "*(1+$B$4)")
set("C" .. row, "=SUM(B7:B" .. row .. ")")
end
set("A20", "Total")
set("B20", "=SUM(B7:B18)")
style("A20:C20", { bold = true })
Lua hit the sweet spot — simple enough that LLMs generate it reliably, sandboxable so agents can't escape, and deterministic enough to fingerprint (vgrid replay model.lua --verify — same noscript, same hash).
We tried JSON op-logs first and they were brittle the moment you needed any conditional logic. Lua lets the agent write actual loops and branches while keeping the output readable enough for a human to code review.
One thing I'm still working through: performance when mapping large grid ranges to Lua tables.
Right now sheet:get() on 50k rows is row-by-row across the FFI boundary. I've been considering passing ranges as userdata with \_\_index/\_\_newindex metamethods instead of materializing full tables.
Anyone have experience with high-volume data access patterns through mlua?
Curious what's worked for batching reads/writes without blowing up memory.
CLI is open source (AGPLv3): [https://github.com/VisiGrid/VisiGrid](https://github.com/VisiGrid/VisiGrid)
https://redd.it/1r42b9a
@r_lua
I've been building a spreadsheet engine in Rust (mlua), and I wanted to share a pattern that's been working surprisingly well: using Lua as the source of truth for AI-generated models.
**The problem**: When you ask an LLM to build a financial model in Excel, it's a black box. You get a .xlsx with hundreds of hidden dependencies. If a formula is wrong, you're hunting through cells. There's no diff, no code review, and no way to replay the construction.
What we do instead: In VisiGrid, AI agents don't touch cells. They write Lua noscripts that build the grid.
Claude generates this instead of a binary blob
set("A3", "Base Revenue")
set("B3", 100000)
set("A4", "Growth Rate")
set("B4", 0.05)
for i = 1, 12 do
local row = 6 + i
set("A" .. row, "Month " .. i)
set("B" .. row, i == 1
and "=B3"
or "=B" .. (row-1) .. "*(1+$B$4)")
set("C" .. row, "=SUM(B7:B" .. row .. ")")
end
set("A20", "Total")
set("B20", "=SUM(B7:B18)")
style("A20:C20", { bold = true })
Lua hit the sweet spot — simple enough that LLMs generate it reliably, sandboxable so agents can't escape, and deterministic enough to fingerprint (vgrid replay model.lua --verify — same noscript, same hash).
We tried JSON op-logs first and they were brittle the moment you needed any conditional logic. Lua lets the agent write actual loops and branches while keeping the output readable enough for a human to code review.
One thing I'm still working through: performance when mapping large grid ranges to Lua tables.
Right now sheet:get() on 50k rows is row-by-row across the FFI boundary. I've been considering passing ranges as userdata with \_\_index/\_\_newindex metamethods instead of materializing full tables.
Anyone have experience with high-volume data access patterns through mlua?
Curious what's worked for batching reads/writes without blowing up memory.
CLI is open source (AGPLv3): [https://github.com/VisiGrid/VisiGrid](https://github.com/VisiGrid/VisiGrid)
https://redd.it/1r42b9a
@r_lua
GitHub
GitHub - VisiGrid/VisiGrid: A deterministic spreadsheet engine for reconciliation, audit, and reproducible computation.
A deterministic spreadsheet engine for reconciliation, audit, and reproducible computation. - VisiGrid/VisiGrid
Luazen support for windows
Hey!
About this project: https://github.com/philanc/luazen/
I've been looking for some cryptography libs in lua and couldn't find many, except this one using ed25519 that worked really well on mac, but I can't get it to work on windows.
Has any one ever tried to port this to windows? I saw the issues with some attempts, just curious if anyone here tried too.
Or also, if there's any other lib that I could use, I'd be happy to change - but I couldn't find any
Thanks in advance
https://redd.it/1r3n3ah
@r_lua
Hey!
About this project: https://github.com/philanc/luazen/
I've been looking for some cryptography libs in lua and couldn't find many, except this one using ed25519 that worked really well on mac, but I can't get it to work on windows.
Has any one ever tried to port this to windows? I saw the issues with some attempts, just curious if anyone here tried too.
Or also, if there's any other lib that I could use, I'd be happy to change - but I couldn't find any
Thanks in advance
https://redd.it/1r3n3ah
@r_lua
GitHub
GitHub - philanc/luazen: Compression and crypto for Lua: LZMA, Chacha20, curve25519, ed25519 signature, Blake2b hash and more...
Compression and crypto for Lua: LZMA, Chacha20, curve25519, ed25519 signature, Blake2b hash and more... - philanc/luazen
how to learn
i’m a beginner to lua and coding in general and i want to learn how to code it, but i dont know where to start. all the youtube videos and tutorials i’ve watched so far haven’t helped, so i decided to come to the place of eternal wisdom: reddit. i primarily intend to use it for roblox game development. i just keep getting lost and feel like im going in circles and not actually learning anything. any advice?
https://redd.it/1r54c52
@r_lua
i’m a beginner to lua and coding in general and i want to learn how to code it, but i dont know where to start. all the youtube videos and tutorials i’ve watched so far haven’t helped, so i decided to come to the place of eternal wisdom: reddit. i primarily intend to use it for roblox game development. i just keep getting lost and feel like im going in circles and not actually learning anything. any advice?
https://redd.it/1r54c52
@r_lua
Reddit
From the lua community on Reddit
Explore this post and more from the lua community
I come to seek for eternal wisdom from the great programmers. Also because I heard Polytoria uses Lua-
https://www.reddit.com/gallery/1r55m68
https://redd.it/1r563jp
@r_lua
https://www.reddit.com/gallery/1r55m68
https://redd.it/1r563jp
@r_lua
Reddit
From the Polytoria community on Reddit: HELP WITH SCRIPTING PLEEEASE
Explore this post and more from the Polytoria community
Lua 5.5 length operator now stricer than with Lua 5.4
While porting
C:\...\tests> lua -e "print(VERSION); t={nil,true}; print(#t)"
Lua 5.5
0
[C:\...\tests]> C:\Apps\OneLuaPro-5.4.8.3-x64\bin\lua.exe -e "print(VERSION); t={nil,true}; print(#t)"
Lua 5.4
2
Bug or feature? I've also posted this issue into the
https://redd.it/1r5c0l9
@r_lua
While porting
lua-cjson to Lua 5.5, I encountered a test case failure. It appears that Lua 5.5 handles table length evaluation more strictly than previous versions, especially regarding tables with holes:C:\...\tests> lua -e "print(VERSION); t={nil,true}; print(#t)"
Lua 5.5
0
[C:\...\tests]> C:\Apps\OneLuaPro-5.4.8.3-x64\bin\lua.exe -e "print(VERSION); t={nil,true}; print(#t)"
Lua 5.4
2
Bug or feature? I've also posted this issue into the
lua-l list.https://redd.it/1r5c0l9
@r_lua
Reddit
From the lua community on Reddit
Explore this post and more from the lua community
Lunar: a self-hosted Golang+Lua FaaS for personal use.
https://github.com/dimiro1/lunar
https://redd.it/1r5c4ny
@r_lua
https://github.com/dimiro1/lunar
https://redd.it/1r5c4ny
@r_lua
GitHub
GitHub - dimiro1/lunar: A lightweight, self-hosted Function-as-a-Service platform written in Go with Lua noscripting.
A lightweight, self-hosted Function-as-a-Service platform written in Go with Lua noscripting. - dimiro1/lunar
Melhor IA para programar em LUA...
Opa! Alguém ai poderia me indicar uma IA, qualquer IA, que seja boa na programação LUA?
https://redd.it/1r5mqmi
@r_lua
Opa! Alguém ai poderia me indicar uma IA, qualquer IA, que seja boa na programação LUA?
https://redd.it/1r5mqmi
@r_lua
Reddit
From the lua community on Reddit
Explore this post and more from the lua community
Code lua
Bonjour, j'apprends le langage de programmation Lua. Je me lance de petits défis, et celui-ci consiste à déclencher une action : une explosion se produit lorsqu'on touche un élément. Je ne sais pas comment faire. Pourriez-vous m'aider ?
https://redd.it/1r6794d
@r_lua
Bonjour, j'apprends le langage de programmation Lua. Je me lance de petits défis, et celui-ci consiste à déclencher une action : une explosion se produit lorsqu'on touche un élément. Je ne sais pas comment faire. Pourriez-vous m'aider ?
https://redd.it/1r6794d
@r_lua
Reddit
From the lua community on Reddit
Explore this post and more from the lua community
typing lua is way slower than my normal typing speed for some reason
been noscripting in lua for a while now (mainly roblox studio stuff) and just noticed my typing speed tanks whenever i'm actually coding vs just typing normal text
like i can do 75wpm easy on regular stuff but the moment i'm typing
found this site typequicker that has a lua practice mode where you can drill actual lua syntax. function declarations, table operations, all those symbols that mess up your flow. been running through it for like 15min before coding sessions
went from \~45wpm on lua code to like 70wpm in a few weeks which is kinda wild. now typing
also shows which fingers are slow so you can focus on what's actually holding you back. my right pinky was terrible at brackets and parentheses lol
anyway if your typing feels like it's bottlenecking your lua workflow might be worth checking out. better than just grinding random words that don't help with actual syntax
https://redd.it/1r6x2g9
@r_lua
been noscripting in lua for a while now (mainly roblox studio stuff) and just noticed my typing speed tanks whenever i'm actually coding vs just typing normal text
like i can do 75wpm easy on regular stuff but the moment i'm typing
function(), end, pairs of brackets, table constructors with all the commas and colons... drops to like 45wpm. really annoying when you're trying to iterate fast or you're in the zone and your fingers are just lagging behindfound this site typequicker that has a lua practice mode where you can drill actual lua syntax. function declarations, table operations, all those symbols that mess up your flow. been running through it for like 15min before coding sessions
went from \~45wpm on lua code to like 70wpm in a few weeks which is kinda wild. now typing
for k,v in pairs() or nested tables doesn't have that awkward stutter anymorealso shows which fingers are slow so you can focus on what's actually holding you back. my right pinky was terrible at brackets and parentheses lol
anyway if your typing feels like it's bottlenecking your lua workflow might be worth checking out. better than just grinding random words that don't help with actual syntax
https://redd.it/1r6x2g9
@r_lua
Type Quicker
TypeQuicker | Type at the Speed of Thought
The most effective way to type faster and improve your typing speed. Become fast at typing with our personalized typing practice.
Any good tutorials for LÖVR 3d?
I'm a completely inexperienced programmer and I only recently learned to program in Lua. I was looking for a way to explore 3d and decided to learn LÖVR 3d. Is there a good source that introduces LÖVR for beginners?
https://redd.it/1r9u0w3
@r_lua
I'm a completely inexperienced programmer and I only recently learned to program in Lua. I was looking for a way to explore 3d and decided to learn LÖVR 3d. Is there a good source that introduces LÖVR for beginners?
https://redd.it/1r9u0w3
@r_lua
Reddit
From the lua community on Reddit
Explore this post and more from the lua community