Next.js example Updated 2025-07-16
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Our examples are located under nodejs/next:
Solved ones:
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Connect to other computer in LAN by hostname with DHCP Updated 2025-07-16
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TODO didn't manage to get it working with TP Link ARCHER VR2800 even though it shows DHCP as enabled and it also shows MAC addresses and corresponding hostnames in the router management interface.
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Ciro Santilli's open source contributions / Security Updated 2025-07-16
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DateProjectSizeDescription
2016-05All GitHub Commit Emails1Password disclosure grep password on email data. Gmail password worked and user confirmed.
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Ciro Santilli's open source contributions Updated 2025-07-16
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This is mostly stuff from before 2016 when Ciro was anxious to document his contributions to get a job.
Most of the projects here are also minor contributions, or Ciro later noticed that the projects were not useful enough to work on and that he was actually wasting his time.
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EMBII Updated 2025-07-16
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One of the dudes from the AtomSea & EMBII Bitcoin-based file upload system.
Figure 1.
EMBII's usual profile image
. Source.
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Ciro Santilli's hardware / Dell Inspiron 15 3520 Updated 2025-07-16
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Some reviews:
  • the keyboard is kind of crap. Notably the key "a" is very hard to press!!
  • the lack of a sleep state indication LED and "I'm powering on LED" compared to Lenovo is really sad
  • it gets way too hot doing work (Monero bootstrap) with lid closed, likely brought system down
OPSEC: will run only cryptocurrency wallets and nothing else. Will connect to Internet, but never ever to a non clean USB flash drive.
The OPSEC for this machine supposes:
Bootstrap OPSEC:
It must have taken about one week running full time to sync the Monero blockchain which at the time was at about 3.1M blocks! I checked on system explorer, and CPU and internet usage was never maxed out, suggesting simply slow network. But the computer still overheated quite a bit and froze a few times.
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CIA 2010 covert communication websites / ipinf.ru Updated 2025-07-16
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alljohnny.com had a hit: ipinf.ru/domains/alljohnny.com/, and so Ciro started looking around... and a good number of other things have hits.
Not all of them, definitely less data than viewdns.info.
But they do reverse IP, and they show which nearby reverse IPs have hits on the same page, for free, which is great!
Shame their ordering is purely alphabetical, doesn't properly order the IPs so it is a bit of a pain, but we can handle it.
OMG, Russians!!!
The data here had a little bit of non-overlap from other sources. 4 new confirmed hits were found, plus 4 possible others that were left as candidates.
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Charles K. Kao Updated 2025-07-16
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Figure 1. Source.
Figure 2.
2009 Nobel Prize lecture
. Poor Charles was too debilitated by Alzheimer's disease to give the talk himself! But if you've got a pulse, you can get the prize, so all good.
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Carl Mark Force Updated 2025-07-16
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Full name Carl Mark Force IV, the fourth! As mentioned at www.vice.com/en/article/vv7dgj/great-moments-in-shaun-bridges-a-corrupt-silk-road-investigator (this made Ciro Santilli laugh quite hard:
Carl Mark Force IV - the other corrupt cop charged alongside Bridges - is pretty hard to beat, just name-wise.
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bsub -I option Updated 2025-07-16
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BSHUNTER: Detecting and Tracing Defects of Bitcoin Scripts Updated 2025-07-16
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Authors: Peilin Zheng, Xiapu Luo, Zibin Zheng
Epic title.
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Obsidian (software) Updated 2025-07-16
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Good:
Bad:
Figure 1.
Obsidian demo
. Source.
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FFmpeg sound synthesis Updated 2025-07-16
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2 second 1000 Hz:
ffmpeg -f lavfi -i "sine=f=1000:d=2" out.wav
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Block reward Updated 2025-07-16
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Ollama Updated 2025-07-16
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Ollama is a highly automated open source wrapper that makes it very easy to run multiple Open weight LLM models either on CPU or GPU.
Its README alone is of great value, serving as a fantastic list of the most popular Open weight LLM models in existence.
Install with:
curl https://ollama.ai/install.sh | sh
The below was tested on Ollama 0.1.14 from December 2013.
Download llama2 7B and open a prompt:
ollama run llama2
On P14s it runs on CPU and generates a few tokens per second, which is quite usable for a quick interactive play.
As mentioned at github.com/jmorganca/ollama/blob/0174665d0e7dcdd8c60390ab2dd07155ef84eb3f/docs/faq.md the downloads to under /usr/share/ollama/.ollama/models/ and ncdu tells me:
--- /usr/share/ollama ----------------------------------
    3.6 GiB [###########################] /.ollama
    4.0 KiB [                           ]  .bashrc
    4.0 KiB [                           ]  .profile
    4.0 KiB [                           ]  .bash_logout
The file:
/usr/share/ollama/.ollama/models/manifests/hf.co/mlabonne/Meta-Llama-3.1-8B-Instruct-abliterated-GGUF/Q2_K
gives a the exact model name and parameters.
We can also do it non-interactively with:
/bin/time ollama run llama2 'What is quantum field theory?'
which gave me:
0.13user 0.17system 2:06.32elapsed 0%CPU (0avgtext+0avgdata 17280maxresident)k
0inputs+0outputs (0major+2203minor)pagefaults 0swaps
but note that there is a random seed that affects each run by default. ollama-expect is an attempt to make the output deterministic.
Some other quick benchmarks from Amazon EC2 GPU on a g4nd.xlarge instance which had an Nvidia Tesla T4:
0.07user 0.05system 0:16.91elapsed 0%CPU (0avgtext+0avgdata 16896maxresident)k
0inputs+0outputs (0major+1960minor)pagefaults 0swaps
and on Nvidia A10G in an g5.xlarge instance:
0.03user 0.05system 0:09.59elapsed 0%CPU (0avgtext+0avgdata 17312maxresident)k
8inputs+0outputs (1major+1934minor)pagefaults 0swaps
So it's not too bad, a small article in 10s.
It tends to babble quite a lot by default, but eventually decides to stop.
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Blockchain explorer Updated 2025-07-16
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Bitcoin varint Updated 2025-07-16
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Implementations:
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Bitcoin script that terminates with multiple values on the stack Updated 2025-07-16
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nodejs/read_child_process_lines.js Updated 2025-07-16
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react/ref-click-counter.html Updated 2025-07-16
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Dummy example of using a React ref This example is useless and to the end user seems functionally equivalent to react/hello.html.
It does however serve as a good example of what react does that is useful: it provides a "clear" separation between state and render code (which becomes once again much less clear in React function components.
Notably, this example is insane because at:
<button onClick={() => {
  elem.innerHTML = (parseInt(elem.innerHTML) + 1).toString()
we are extracing state from some random HTML string rather than having a clean JavaScript variable containing that value.
In this case we managed to get away with it, but this is in general not easy/possible.
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