Shreyas Mididoddi
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shreyascodes.tech
Shreyas Mididoddi
@shreyascodes.tech
750 followers 220 following 3.3K posts
passionate developer,
http://htmx.ceo 🤷 btw!
always happy / *never sad (same thing)
mental af ? 🤔
señor junior dev,
I'm here to have fun and make friends

* = almost
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shreyascodes.tech
that's 23mil lines of markdown per second lol

(not sure if this is fast or slow but the parser is not complete yet so not really fair to compare to others anyway)
$ wc -l ~/temp/rust-book/huge.md took 4s 17357556 /home/shreyas/temp/rust-book/huge.md $ zig build -Doptimize=ReleaseFast run -- ~/temp/rust-book/huge.md elapsed time: 749 ms
November 7, 2025 at 5:58 PM
shreyascodes.tech
Not sure how this works if you can just not login and clone my shit but cool feature ig
October 31, 2025 at 12:30 PM
shreyascodes.tech
lol what do you people think of this as the start of a blog post?
A blog post titled "[Draft] The Zig Build System is F**king Awesome: So what the hell is a Zig?". Below the title, Andrew Kelly is Photoshopped onto Steve Jobs on stage, mimicking the classic iPhone reveal. He's presenting three distinct aspects of Zig: a C compiler (represented by the LLVM dragon icon), a build system (represented by the CMake pyramid icon), and a programming language (represented by the Zig logo). The text on screen reads "C compiler", "build system", and "Programming language" below each respective icon.
October 24, 2025 at 10:56 PM
shreyascodes.tech
i love c but man a result type like in rust or zig error unions would be so much nicer than this
typedef enum load_image_error_t { load_image_error_unsupported_format, load_image_error_invalid_data, load_image_error_out_of_memory, } load_image_error_t; /// Return value of `load_image` and `load_image_with_format`. /// `success` is set to `true` if the image was loaded successfully. typedef struct load_image_result_t { bool success; union { image_t image; load_image_error_t error; }; } load_image_result_t; /// Loads an image from a given file path. /// Automatically detects the image format based on the file extension. /// Image data is owned by the caller and must be freed using `image_free`. /// /// Also checkout `load_image_with_format` load_image_result_t load_image(const uint8_t *file_path);
October 23, 2025 at 11:11 PM
shreyascodes.tech
that is sooo much better already
A black image with white outlined letters "JB3G15" rotated slightly clockwise. Each character is individually boxed.
October 19, 2025 at 4:22 PM
shreyascodes.tech
pure zig ocr? (well sort of i just started but this is soo cool already no llms or deps)
A black image with the text "T3K23G" in white, outlined in red boxes, against a black background.
October 19, 2025 at 11:18 AM
shreyascodes.tech
closures (okay well not really capturing but still v cool) in zig lfg

i need some tree sitter and lsp hacking but this is soo nice already lol
const std = @import("std"); pub const main = @fn(() void { std.log.info("Hello, World!", .{}); }); # zig build run info: Hello, World!
October 8, 2025 at 4:37 PM
shreyascodes.tech
lol when you don't know what you're doing and you don't have any examples to go off of cuz people been doing this the shitty way forever
git log --oneline --decorate | head -n 8 5700902 (HEAD -> main) ai slop bad4762 it works? 1b2a6ae stuffff 40c71fd feat: stuff 20fc00c fix errors dbab007 moar manifest b3c0eb9 better manifest generation a77e70f docs?
September 28, 2025 at 3:44 PM
shreyascodes.tech
oh?
a screenshot with with 3 windows, a terminal with the following code const std = @import("std"); const c = @cImport({ @cInclude("android/log.h"); @cInclude("android/native_activity.h"); }); export fn ANativeActivity_onCreate(activity: ?*c.ANativeActivity, savedState: ?*anyopaque, savedStateSize: usize) callconv(.c) void { _ = activity; // autofix _ = savedState; // autofix _ = savedStateSize; // autofix _ = c.__android_log_write( c.ANDROID_LOG_INFO, "Sugon", "Deez Nuts haha gottem", ); } another terminal with the following output ➜ zig build -Doptimize=ReleaseFast ➜ adb install -r zig-out/app-x86_64.apk Performing Streamed Install Success ➜ adb shell am start -n codes.shreyas.mydroidshit/android.app.NativeActivity Starting: Intent { cmp=codes.shreyas.mydroidshit/android.app.NativeActivity } ➜ adb logcat -d | rg -i sugon 09-28 15:55:27.364 12575 12575 I Sugon : Deez Nuts haha gottem and than another window with an android device preview with a black screen
September 28, 2025 at 10:32 AM
shreyascodes.tech
f xml and java and gradle and maven

I am going to rewrite the world to not use those
const Manifest = @import("manifest"); pub const manifest = Manifest{ .package = "codes.shreyas.mydroidshit", .android_versionName = "0.0.1", .application = .{ .android_label = "@string/app_name", .android_icon = "", .activity = &.{Manifest.Activity{ .android_name = ".MainActivity", .android_exported = true, .meta_data = &.{ // ... collapsed content }, .intent_filter = &.{ Manifest.IntentFilter.main_launcher, }, }}, }, };
September 26, 2025 at 5:09 AM
shreyascodes.tech
i am very new to this whole writing articles thing

you think this a good way to start one?
Let’s say you have to build an application that runs on windows, all 69,420 versions of Linux (did I tell you I use arch btw?) and macOS, x86 and arm architectures. What do you do? Well, you just use Java and be done with it. Thanks for coming to my ted talk. Bye Bye!
September 20, 2025 at 9:44 PM
shreyascodes.tech
if you are building any native cross platform stuff and you're on linux get wine and darling and qemu

amazing what linux can do these days
$ rm -rf zig-out $ rm orange-out.png $ zig build -Dtarget=x86_64-linux $ zig build -Dtarget=x86_64-windows $ mv zig-out/bin/odiff zig-out/bin/odiff-linux $ zig build -Dtarget=x86_64-macos $ ./zig-out/bin/odiff-linux ./test/png/orange.png ./test/png/orange_changed.png ./orange-out.png Found 1366 different pixels (1.14%) $ file orange-out.png orange-out.png: PNG image data $ rm orange-out.png $ darling shell ./zig-out/bin/odiff <..options> Found 1366 different pixels (1.14%) $ file orange-out.png orange-out.png: PNG image data $ rm orange-out.png $ ./zig-out/bin/odiff.exe <..options> $ file orange-out.png orange-out.png: PNG image data
September 11, 2025 at 1:57 AM
shreyascodes.tech
this is me building odiff (by @neogoose.bsky.social
go check it out it is cool) from my arch (btw) linux machine

it has 4 c native deps (not like we have disabled cgo or whatever) built from source btw no cheating by linking against pre built binaries

zig ftw
➜ zig build -Dtarget=x86_64-windows ➜ zig build -Dtarget=x86_64-macos ➜ zig build -Dtarget=x86_64-linux ➜ zig build -Dtarget=aarch64-macos ➜ zig build -Dtarget=aarch64-windows ➜ zig build -Dtarget=aarch64-linux ➜ uname -a Linux shreyas 6.15.9-arch1-1 #1
September 10, 2025 at 3:02 PM
shreyascodes.tech
to draw this from scratch:
- 1500+ lines of wayland code
- 322 lines of xml parser
- 320 lines of webgpu wrapper code
- 17 lines of shader
- 70 lines of driver code
a screenshot of a white window running on wayland with a small rectangle inside with a colorful gradient
September 6, 2025 at 2:06 AM
shreyascodes.tech
it's weird, it's javascript
let arr = [1, 2, 3]; arr.map(async (x, _, self) => { // self == arr here console.log(self === arr); await new Promise((resolve) => setTimeout(resolve, 100)); // self != arr here console.log(self === arr); return x + self[0]; }); // because we re-assign arr here arr = [3, 4, 5]; # deno main.ts true true true false false false
August 30, 2025 at 2:49 PM
shreyascodes.tech
guess how much time it took me to get to this simple red triangle on screen

and it involved writing an xml parser from scratch
# zig build run debug(wayland): Wayland display connected debug(wayland): Wayland registry connected debug(wayland): Wayland roundtrip completed in 0ms debug(wayland): Wayland initialized debug(wayland): EGL display acquired debug(wayland): EGL initialized debug(wayland): EGL context created debug(wayland): Wayland surface created debug(wayland): Layer shell surface created debug(wayland): EGL window created debug(wayland): EGL surface attached debug(wayland): Wayland roundtrip completed in 5ms
August 27, 2025 at 12:55 PM
shreyascodes.tech
A 9 year old youtube comment lmao
I'm a huge fan of Rob Pike but he dresses really weird! A carrot-coloured suit with turquoise T-shirt? WTF!
August 27, 2025 at 7:53 AM
shreyascodes.tech
you mean like this?
(() => { const proxyUrl = env("GEMINI_PROXY"); if (!proxyUrl) return; const oldFetch = globalThis.fetch; function isGeminiReq(url: URL | RequestInfo) { const { hostname } = typeof url === "string" ? new URL(url) : url instanceof Request ? new URL(url.url) : url; return hostname === "generativelanguage.googleapis.com"; } if ("Deno" in globalThis) { console.log("using deno proxy"); const client = Deno.createHttpClient({ proxy: { url: proxyUrl, }, }); globalThis.fetch = (url: URL | RequestInfo, init?: RequestInit) => { if (!isGeminiReq(url)) return oldFetch(url, init); return oldFetch(url, { ...init, // @ts-expect-error - deno supports this client, }); }; } else { console.log("using node proxy"); const dispatcher = new ProxyAgent(proxyUrl); globalThis.fetch = (url: URL | RequestInfo, init?: RequestInit) => { if (!isGeminiReq(url)) return oldFetch(url, init); return oldFetch(url, { ...init, // @ts-expect-error - node supports this dispatcher, }); }; } })();
August 26, 2025 at 11:32 PM
shreyascodes.tech
A screenshot of a music player notification showing song titled Adhento Gaani Vunnapaatuga
August 7, 2025 at 2:48 PM
shreyascodes.tech
based
-> yay -Q | rg -i electron electron32 32.3.3-1 electron33 33.4.11-2 electron34 34.5.8-1 electron35 35.7.2-1 electron36 36.7.3-1
August 3, 2025 at 8:41 PM
shreyascodes.tech
Congratulations
July 20, 2025 at 5:01 PM
shreyascodes.tech
lol love when the compiler outsmarts me in a subtle way and gives a free 5% boost just by doing less (the asm is soo close, i just missed a tiny detail but it didn't/couldn't)
> git log --oneline --decorate | head -n 1 729f471 (HEAD -> main) get rid of all the inlines to make the lexer go brrr (trust the compiler ig?)
July 17, 2025 at 11:12 PM
shreyascodes.tech
push down automata ftw
pub fn parse(self: *Self) !Node.NodeIndex { const BinOp = Node.BinOp; const UnOp = Node.UnOp; try self.reset(); const parser = self.parent(); var frame: *StackFrame = undefined; parsing: switch (StackFrame.State.start) { .start => { frame = try self.pushFrame(.min); continue :parsing .expression; }, .expression => { ⋯ }, .parenthesized_expr => { ⋯ }, .expect_unary => { ⋯ }, .expect_primary => { ⋯ }, .maybe_operator => { ⋯ }, .pop_and_reduce => { ⋯ }, } std.debug.assert(self.expr_stack.items.len == 0 and self.expr_stack.capacity > 0); // safe to call cuz capacity > 0 self.expr_stack.items.len = 1; return self.expr_stack.items[0].lhs; }
July 13, 2025 at 5:31 PM
shreyascodes.tech
should i keep the source? what do you think??

(this is just after lexing and the ast will be atleast 3x this i think)
/// from testing it seems like for average code, tokens/source byte /// is around 0.17 so let's say it's 0.2 /// /// if we only store source bytes for dynamic tokens like id, string, int etc /// dynamic token bytes/source byte is around 0.47 so let's say it's 0.5 /// /// we know token_size = 4 bytes /// let source_bytes = x /// total_tokens = 0.2x /// token_bytes = total_tokens * token_size /// => 0.2x * 4 = 0.8x /// /// ## if we keep the source and tokens /// => total_memory = token_bytes + source_bytes /// => 0.8x + x /// => total_memory = 1.8x bytes /// /// ## if we keep the source and only store the source bytes for dynamic tokens /// => total_memory = token_bytes + dynamic_token_bytes /// => 0.8x + 0.5x /// => total_memory = 1.3x bytes pub const Token = packed struct(u32) { kind: Kind, has_end: bool, offset: u24, }; ➜ zig build run -Doptimize=ReleaseFast -- ./big.zig error(parser): lexer errors: 261472 error(main): Token size: 4 bytes error(main): Tokens: 111039104 error(main): Source bytes: 620516576 error(main): Tokens per byte: 0.17894623333962315 tokens error(main): Token bytes: 444156416 error(main): Total memory: 1064672992 bytes error(main): Total memory per byte: 1.7157849333584927 bytes error(main): Dynamic token bytes per byte: 0.47682712669387256 bytes error(main): Total memory with dynamic tokens: 740035552 bytes error(main): Total memory with dynamic tokens per byte: 1.192612060052365 bytes
July 13, 2025 at 5:46 AM
shreyascodes.tech
too late
June 16, 2025 at 9:19 PM