Birch-san

9 ms·

31.
by Birch-san 5y ago
Liquidfun [0] diverged from Box2D at v2.3.0, circa November 2013. liquidfun-wasm [1] is my effort to rebase the liquidfun contributions onto latest Box2D, v2.4.1 (October 2020), and to distribute it in WebAssembly with TypeScript typings. t
32.
Show HN: WASM and WebGL Fluid Simulation(birchlabs.co.uk)
86 points by Birch-san 5y ago|30 comments
33.
by Birch-san 5y ago
bpftrace is considering adding a new backend that wouldn't involve any LLVM[0]. Additionally, ply is another effort (which doesn't use LLVM) to build a DTrace-like frontend to BPF.[1] [0] https://github.com/iovisor
34.
by Birch-san 5y ago
make-portable.sh. Makes any macOS .dylib or executable portable. It (recursively) makes local copies of all the dynamic libraries on which you depend, and rewrites all load commands to prefer the local copy. This lets you safely distribute
35.
by Birch-san 6y ago
Ah, if it's blank, then it blew up really early. It sounds like it's complaining about the use of ES modules. This script is loaded with `<script type="module">` and uses ES imports (`import App from './A
36.
Show HN: Box2D fluid simulation in WebGL and WASM(birchlabs.co.uk)
71 points by Birch-san 6y ago|23 comments
37.
Show HN: Lunar Survey: A Mario Galaxy Tribute in WebAssembly(birchlabs.co.uk)
1 points by Birch-san 6y ago|0 comments
38.
by Birch-san 6y ago
It's absolutely useful in practice. Sometimes the library you need was written in C++, and needs to run performantly and offline. I needed WASM and PWA to make an offline Japanese dictionary: https://birchlabs.co.uk/mec
39.
Show HN: Box2D physics engine in WebAssembly and TypeScript(github.com)
2 points by Birch-san 6y ago|0 comments
40.
by Birch-san 7y ago
I agree that it's important to find something better than the laptop keyboard. Even a £2 keyboard will outperform it; position is critical. Split keyboards solve the problem of ulnar deviation. This doesn't affect me as much as ot
41.
by Birch-san 7y ago
There's a bunch of hackers trying to reverse-engineer and open-source the DataHand here (most recent reply was yesterday): https://geekhack.org/index.php?topic=41422.0 I've had a couple of DataHands (and still kee
42.
by Birch-san 7y ago
Genmaicha is a wonderful green tea based on sencha, with brown rice and sometimes popcorn added. Tastes a little nutty. Dragonwell is a nice take on green tea. It's easy to drink endlessly, and a good choice for your main drink. Keemun
43.
by Birch-san 7y ago
Have you considered GraalVM? You can run both languages inside the same managed runtime (JVM), sharing the same data structures, inlining across language boundaries, and debug both with Chrome Dev Tools.
44.
by Birch-san 7y ago
Ever heard of Makey Makey[0]? It's crocodile-clip electronics. You can build a piano out of bananas. [0] https://makeymakey.com/
45.
by Birch-san 7y ago
The Windows equivalent of DTrace is.. DTrace. [0] DTrace is about far, far more than snooping the filesystem. At best, Process Monitor is an equivalent of Brendan Gregg's DTrace utility, opensnoop. The true power of DTrace is to correl
46.
by Birch-san 7y ago
Consider installing podman if all you want is a client compatible with Docker.
47.
Show HN: Japanese language helper (WASM, PWA, no back-end)
4 points by Birch-san 8y ago|0 comments
48.
by Birch-san 8y ago
the scope of DTrace far exceeds that of procmon. procmon will show you params and return code for file accesses, and provides filtering, but that's the limit. whereas DTrace could tell you "these are the file accesses that took lo
49.
by Birch-san 8y ago
True for Windows, but not true for macOS. See DYLD_FALLBACK_LIBRARY_PATH in https://www.unix.com/man-page/osx/1/dyld/ -- the dynamic linker will look for the library at the proposed absolute or macro-exp
50.
by Birch-san 8y ago
bpftrace's potential is higher than DTrace's, but at the moment it's definitely not reached parity. For example: we cannot yet read strings bigger than about 240 bytes (any bigger won't fit on the BPF stack).
51.
by Birch-san 8y ago
BPF is compatible with DTrace probes. The kernel verifier does extensive bounds checks on array uses and jumps in BPF programs.
52.
by Birch-san 8y ago
pid provider's gone: sudo dtrace -ln 'pid50922:::entry {}' dtrace: invalid probe specifier pid50922:::entry {}: pid provider is not installed on this system mysql provider's gone: sudo dtrace -x strsize=1024 -q -n '
53.
by Birch-san 8y ago
That used to be enough, but Mojave has broken DTrace further. I find it completely unusable now.
54.
by Birch-san 8y ago
> the project needs someone who knows how to automatically package a .dmg file Recommended reading if you wish to bundle a macOS binary for distribution: https://birchlabs.co.uk/blog/alex/juicysfplugin/synt
55.
by Birch-san 8y ago
Even with the Record layer, it doesn't have support for JOINs in the same way as an RDBMS would. Yes, the Record Layer helps you define and index into _hierarchies_ of entities, but I suspect it doesn't have an answer for other ac
56.
by Birch-san 8y ago
At the very least, it would be good to release an sf3 version; sf3 uses ogg compression (as opposed to mp3). This can be 10x smaller for comparable quality. Though I found that (fluidsynth, at least) is very slow at loading sf3. Takes a few
57.
by Birch-san 8y ago
Wonderful samples. None of the instruments are neglected; the standard is consistently high. And I'm happy to have clarity on the terms of use. So many (for example, Shan's Soundfont) have no stated license or provenance. I'l
58.
by Birch-san 8y ago
looks like he's answering questions: https://news.ycombinator.com/item?id=18854055
59.
by Birch-san 8y ago
how about Java? it's a small enough language that one can encounter and use every language feature within a few years of professional development, and without needing to work in any obscure domain. admittedly, Java got a lot bigger in
60.
by Birch-san 8y ago
:) depends on the desired result. If the primary threat to the project was "not finishing", then I'd absolutely use Electron. Development with web technologies is fast. But if performance _is_ critical, and the biggest risk t

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