Alviro Iskandar Setiawan

https://social.gnuweeb.org/@viro_ssfs

Alviro Iskandar Setiawan, usually called Viro.

- Market observer.
- Love cooking and gardening.
- Enjoy anime, manga, VN and LN.
- Software engineer: C/C++, POSIX, x86 Assembly and the Linux Kernel.

Phone: +1 908 777 0074
Email: alviro.iskandar@gnuweeb.org

Website: https://www.freezing-night.com
GitHub: https://github.com/alviroiskandar
GitLab: https://gitlab.com/alviro.iskandar
Facebook: https://www.facebook.com/alviro.iskandar

Public Key

npub13urevx8hezz9gzhhsnts72lq7t3cqnv4z6rkwyyaf3j5mgyk6knsuqny7u

NIP-05 Address

viro_ssfs_at_social.gnuweeb.org@momostr.pink

Profile Code

nprofile1qqsg7pukrrmu3pz5ptmcf4c090s09cuqfk23dpm8zzw5ce2d5ztdtfcpz3mhxue69uhhyetvv9ujuerpd46hxtnfduqs6amnwvaz7tmwdaejumr0dssflnaw

Publishing to

relay.damus.io

nos.lol

Author Public Key

npub13urevx8hezz9gzhhsnts72lq7t3cqnv4z6rkwyyaf3j5mgyk6knsuqny7u

Show more details

Last Notes

2026-03-05 07:55:41 UTC

misskey.id down lagi :ablobcatnodmeltcry:
https://social.gnuweeb.org/system/media_attachments/files/116/175/490/792/846/844/original/f484e6c8cb5fca6d.png

2026-02-28 07:29:25 UTC

- reply

Where is Board of Peace?

2026-02-20 03:35:38 UTC

- reply

Hold ✋

2026-02-19 21:39:06 UTC

- reply

ah yea, padahal batam mestina sama2 WIB wkwkwk :02lurk:

2026-02-07 14:47:24 UTC

- reply

Where did you take the test?

2026-01-29 18:32:17 UTC

- reply

I saw someone else on another Mastodon instance also wrote in a markdown format. Not sure if it's properly rendered.
https://social.linux.pizza/@shanmukhateja/115979662833544329
One thing I notice is that Mastodon can render markdown format well when a post is sent from another instance (e.g. from Misskey).
But if the post is sent from Mastodon itself and shown on Mastodon, the markdown format doesn't render.
#note1a9s…ng6g

2026-01-29 18:31:42 UTC

- reply

I saw someone else on another Mastodon instance also wrote in a markdown format. Not sure if it's properly rendered.
https://social.linux.pizza/@shanmukhateja/115979662833544329
One thing I notice is that Mastodon can render Markdown when a post is sent from another instance.
But if the post is sent from Mastodon itself and shown on Mastodon, the markdown format doesn't render.
#note1a9s…ng6g

2026-01-29 17:50:54 UTC

- reply

Ivy ganteng sekali

2026-01-29 17:47:00 UTC

- reply

Also, today is the biggest gold futures volume on OKX.

2026-01-29 17:46:36 UTC

- reply

Pretty sure today is the most profitable day to run a grid bot for gold.

2026-01-29 16:30:39 UTC

RE: https://social.gnuweeb.org/@ammarfaizi2/115979138602527054
Me too, biggest drop within minutes I've ever seen in my life.
#note1hht…90qf

2026-01-29 16:29:45 UTC

- reply

How is your position going now?

2026-01-29 16:28:37 UTC

- reply

hbd

2026-01-29 16:27:59 UTC

10am slam dumped gold back to its 24h low. Ethereum and various risky assets also followed the drop.
Last price: Gold $5,265.50. Ethereum $2,812.20.
#gold #ethereum #market #finance
https://social.gnuweeb.org/system/media_attachments/files/115/979/324/796/719/189/original/8498fa8fa0c4977e.png
https://social.gnuweeb.org/system/media_attachments/files/115/979/325/772/413/330/original/72f1fec01160ec29.png

2026-01-29 15:36:46 UTC

- reply

a big drop just came

2026-01-29 13:07:40 UTC

- reply

Dinner is optional, eating isn't.

2026-01-29 12:28:30 UTC

- reply

How much leverage you took?

2026-01-29 12:17:32 UTC

Running futures grid bots in the current market condition is very profitable.

2026-01-29 11:21:46 UTC

- reply

btw, what is quake?
(( my google search result went to quake on steam ))

2026-01-29 10:32:21 UTC

RE: https://social.gnuweeb.org/@ammarfaizi2/115977885097201483
Printing IP addresses from their binary representations can be troublesome.
#note1tad…34xc

2026-01-29 04:21:07 UTC

- reply

... んこ

2026-01-29 02:25:55 UTC

Never expected to make a lot of money while sleeping. My gold holdings have fully hedged my Ethereum loss. Now there is almost zero risk for me to hold Ethereum to zero.
https://social.gnuweeb.org/system/media_attachments/files/115/976/014/855/749/863/original/29681f79d7f7e561.png
https://social.gnuweeb.org/system/media_attachments/files/115/976/015/119/973/167/original/969c3d0fad95f4f8.png

2026-01-28 11:10:12 UTC

- reply

aku cuma tau gate a20
joke satuna apa? :ablobdundundun:

2026-01-28 09:25:06 UTC

RE: https://mastodon.social/@nixCraft/115971997662136518
Kelas menengah akan hilang digantikan AI dan humanoid robot.
#note1ust…8fe7

2026-01-28 08:21:01 UTC

- reply

Also gold...
https://social.gnuweeb.org/system/media_attachments/files/115/971/744/045/289/946/original/69f5a93a67ea3ac2.png

2026-01-27 23:38:50 UTC

- reply

What other Fediverse social apps you have?

2026-01-27 15:44:01 UTC

- reply

Your messsage is rendered as markdown format good when I open it from Misskey
But yeaaa, it is not rendered as markdown when I open it from Mastodon wkwkwk
Sad
https://social.gnuweeb.org/system/media_attachments/files/115/967/827/403/869/604/original/8fb7e94d9a33ac5c.jpg
https://social.gnuweeb.org/system/media_attachments/files/115/967/827/468/927/443/original/cc51c9c7c34033af.jpg

2026-01-27 15:39:09 UTC

- reply

oh ic ic, I misunderstood the inotify usage before.
Yeah, with that pattern it only requires one extra fd.
It makes sense to me now. tq.

2026-01-27 15:14:57 UTC

- reply

ic ic, tq for the advice
So, for each opened file, create an inotify fd and monitor for IN_DELETE_SELF.
I feel a bit bothered knowing the fact the number of fds will double due to inotify :ablobcatnodmeltcry:

2026-01-27 14:24:39 UTC

@npub1am9…995c [@LLENN08](https://hiradai.space/@LLENN08 )
(( update on my HTTP server progress ))
I found a new problem with the file table serving.
Case: When I have a ./public/index.html file and it is accessed by the client via HTTP, the web server will open() the file and save its fd (file descriptor) to the table, so next time it's accessed, it can just use the saved fd instead of opening it again.
This mechanism also makes it possible to serve multiple clients that need the same file using only one fd, saving system resources (the offset is managed separately for each client, handle read via pread(2)).
The similar method is also implemented for the mmap() variant of file serving. Except that it doesn't need to call pread(2).
Now the problem is, when the file is deleted from the filesystem (e.g., via "rm ./public/index.html"), the fd in the table is still valid, and the server will continue to serve the deleted file to clients until the fd is closed (e.g., when the server is restarted).
Putting a new file with the same name (e.g., "echo 'new content' > ./public/index.html") will not affect the existing fd, and clients will still get the old deleted file's content.
For now, my workaround for deleted with is calling stat() on the file before serving it, and if stat() fails, I close the fd and remove it from the table, forcing the server to open() the file again on the next access.
But if the file is deleted, then recreated before the stat() call, the server will miss the deletion and continue to serve the old content.
What is the most reliable way to handle this?

2026-01-27 12:43:07 UTC

Happy birthday @npub1cle…hmr9

2026-01-27 12:19:05 UTC

Will the Fed cut rates?

2026-01-27 11:04:54 UTC

- reply

Kawaii desu ne :ablobdundundun:

2026-01-27 10:59:03 UTC

- reply

No way, partai demokrat bagi-bagi coklat :ablobdundundun:

2026-01-26 03:08:58 UTC

Jalan dulu ke MT Haryono

2026-01-25 16:28:29 UTC

Glad I hedged my ETH spot holdings with put options.

2026-01-25 16:24:03 UTC

- reply

oh ic ic, makes sense, those holidays paused the workflow for a week

2026-01-25 16:17:00 UTC

- reply

last rc before 6.19 stable

2026-01-25 15:37:37 UTC

- reply

semangat

2026-01-25 15:22:55 UTC

- reply

Minimal baca dari awal sampai selesai di kondisi yg gaj darurat, jdi punya memory tentang masalah yg ditemui dibahas di ebook bagian apa, ntar buka dan cari halamanna bisa cepet

2026-01-25 15:04:42 UTC

- reply

Better than in Rupiah.

2026-01-25 02:04:50 UTC

- reply

Welcome to TLKM club.
I also have 3 ISPs, very similar to you:
MyRepublic, FirstMedia, Telkom
I'll terminate the FirstMedia shortly tho.

2026-01-25 01:57:03 UTC

- reply

gm, have a nice day

2026-01-25 01:48:44 UTC

- reply

that's absurd

2026-01-23 21:58:21 UTC

- reply

wkwkwk nyicil indonesia bubar

2026-01-22 12:25:28 UTC

Gubernur DKI Jakarta Pramono Anung membuka peluang penerapan work from home (WFH) dan pembelajaran jarak jauh (PJJ) jika banjir kembali melanda Jakarta akibat hujan lebat dan cuaca ekstrem.

2026-01-22 11:51:09 UTC

Diguyur hujan tanpa henti Jakarta 'Tenggelam'
https://social.gnuweeb.org/system/media_attachments/files/115/938/599/991/129/394/original/96dd01e1bf0bb764.png

2026-01-22 11:50:35 UTC

- reply

I don't get how an old abandoned room tastes

2026-01-22 07:26:45 UTC

- reply

:sataniaHaha:

2026-01-22 06:38:16 UTC

- reply

kenape?

2026-01-22 01:58:24 UTC

- reply

(( reupload via GNU/Weeb Masto gegara misskey.id rusak, ntah knp upload foto jadi kosongan doang ))
ni aku buka profile mu jdi kek gini pak
https://social.gnuweeb.org/system/media_attachments/files/115/936/267/604/058/972/original/bf44125f091be85b.png

2026-01-21 22:59:00 UTC

Heavy morning rain. I'm prepared for a big Jakarta flood.

2026-01-21 02:20:11 UTC

This week's gold price movement is a historic move. We cannot ignore it. I'm very confident that we will see a substantial financial crisis in the near future.
Giving ourselves a time window until 2030 for preparation will leave us too late to actually get prepared. I don't feel good about it. I think we should narrow the preparation time to 2028.
https://social.gnuweeb.org/system/media_attachments/files/115/930/685/810/377/854/original/be1781b457af6e75.png

2026-01-20 16:11:49 UTC

https://soc.me/interfaces/x86-prefixes-and-escape-opcodes-flowchart.html

2026-01-19 20:58:44 UTC

- reply

morning, have a good day :ablobcatcoffee:

2026-01-19 14:39:40 UTC

- reply

good luck traveling abroad

2026-01-19 13:30:04 UTC

https://www.youtube.com/watch?v=Hg3mStr7UpI

2026-01-19 13:25:03 UTC

RE: https://mastodon.social/@bagder/115921920993776365
ada @npub1am9…995c
#note12h9…j4an

2026-01-19 13:24:02 UTC

- reply

sadly
tapi uda e-passport meski masa berlaku 5 tahun?

2026-01-19 13:13:24 UTC

- reply

get enough sleep ivy

2026-01-19 13:11:56 UTC

- reply

e-passport 10 tahun?

2026-01-19 03:11:43 UTC

- reply

It's time to go 100% black.

2026-01-18 21:31:25 UTC

RE: https://uwu.social/@koakuma/115917094206106759
TIL. Ortogonal instruction set.

2026-01-18 16:14:52 UTC

Sempat mengabadikan misskey.id down
https://social.gnuweeb.org/system/media_attachments/files/115/916/977/823/656/726/original/f429a2acea8ad28c.png

2026-01-18 15:44:34 UTC

- reply

😭

2026-01-18 04:48:25 UTC

- reply

good morning, have a nice day

2026-01-17 21:47:13 UTC

Iran is working to permanently cut itself off from the global internet.

2026-01-15 12:54:55 UTC

Bagi yg hobi monitor situasi, pergerakan dunia lebih asik ketika Trump jadi Presiden. Banyak kejutan setiap harinya. Gejolak pasar luar biasa extreme.
(( Biden administration was so boring ))

2026-01-15 12:23:31 UTC

WW3 canceled?
https://social.gnuweeb.org/system/media_attachments/files/115/899/090/539/206/721/original/c3f7d82b2db40d57.png

2026-01-15 09:58:37 UTC

RE: https://uwu.social/@koakuma/115897459733373470
My initial reaction when reading EROFS.

2026-01-15 02:19:24 UTC

- reply

Yes, sooner or later.

2026-01-15 01:38:05 UTC

Handling static big files, each file may have multiple readers.
Offered methods: mmap() vs pread()
Which one is your choice? And why?
#linux #posix

2026-01-15 01:18:06 UTC

Nasionalisme adalah akal-akalan para elit lokal.

2026-01-15 00:44:09 UTC

- reply

🥴🥴

2026-01-15 00:38:07 UTC

- reply

Burungna mati gak, kesetrum?

2026-01-15 00:34:32 UTC

- reply

Aku, aku

2026-01-14 19:50:51 UTC

WW3 when?

2026-01-14 19:12:24 UTC

Kangen videonya Ewing yang bilang: "Hai semua nama gue Ewing dan terima kasih telah memberikan gue kesempatan untuk menemani malam Jum'at lo."

2026-01-14 15:22:02 UTC

RE: https://social.gnuweeb.org/@irfankitsune/115894044057991914
Rupiah akan menyusul.
#note1esf…taj5

2026-01-14 15:16:31 UTC

Rupiah akan hancur

2026-01-14 15:16:25 UTC

1 USD = 17K IDR hanya tinggal tunggu waktu

2026-01-14 14:44:31 UTC

- reply

Are you going to murder someone?

2026-01-14 14:32:15 UTC

- reply

Nice sir. How was your first meeting?
Consider adding more hours to speed up your learning process. It would be great if you could pass JLPT N2 in 2027 or sooner.

2026-01-14 12:51:35 UTC

- reply

I wish you find a job that you enjoy working.

2026-01-14 12:40:50 UTC

- reply

Exactly that.

2026-01-14 11:12:13 UTC

- reply

Maybe not.

2026-01-13 19:07:18 UTC

https://www.youtube.com/watch?v=nRbbMNPrS4c

2026-01-13 08:30:16 UTC

- reply

Azkii :ablobcatreach:

2026-01-13 07:36:49 UTC

https://www.youtube.com/watch?v=sDdoMnZvLuE

2026-01-13 07:32:21 UTC

Banjir Jakarta Utara Tewaskan 3 Orang.
Total 3 orang tewas tersetrum saat banjir merendam Cilincing Jakarta Utara, Polisi imbau warga tetap waspada.

2026-01-13 06:51:23 UTC

Suda mengurangi alat elektronik di lantai 1 (pindahin ke lantai 2)
Kalo banjirnya sampe masuk rumah, saya sudah well prepared

2026-01-12 22:11:01 UTC

- reply

If you provide the server and need someone who takes care of it. I will do it for you.

2026-01-12 17:53:47 UTC

Persiapan menghadapi banjir extreme jakarta:
- life vest / baju pelampung (minimal 2, sesuaikan jumlah anggota keluarga)
- perahu karet
- tas rangsel darurat
Kalo tinggal bersama keluarga, pastikan semua anggota keluarga tahu lokasi tas darurat, life vest, dan perahu karet
Isi tas rangsel darurat:
- powerbank
- makanan ringan tahan lama
- minuman botol
- korek
- peluit
- senter
- pakaian ganti (untuk 3 hari)
- handuk kecil
- obat-obatan pribadi
- charger HP
- uang kertas minimal 1 juta (gw recommend 5 juta sekalian):
- misal pecahan kecil (2rb, 5rb, 10rb, 20rb) total 1 juta
- pecahan besar (50rb, 100rb) total total 4 juta
(( pecahan kecil untuk mempermudah transaksi ketika ga ada kembalian di tempat kita ngungsi nanti. ))
- fotokopi dokumen penting (KTP, KK, SIM, etc.)
- HP cadangan (SIM card lebih dari 1, beda operator):
- Pulsa minimal 100rb di semua SIM card
- Kuota internet harus ready di semua SIM card
- selimut emergency aluminium foil (jangan bawa selimut kain, biar hemat tempat)
Usahakan passport, KTP, dan dokumen penting lainnya selalu dibawa di tas kecil terpisah.
Saran dan masukan sangat diterima untuk optimize ato melengkapi daftar di atas.
Meski gitu tetep kita berharap semoga barang2 yg kita siapkan tidak terpakai (IOW, gak banjir)
tq so much for your support!

2026-01-12 16:43:31 UTC

- reply

gass pindah jepang

2026-01-12 15:37:40 UTC

- reply

Berharap apa sama pemerintah Indonesia :ablobdundundun:

2026-01-12 15:19:48 UTC

Kalau belum e-passport segera ganti e-passport di tahun 2026 aj (biar dapet masa berlaku 10 tahun).
Karena di tahun 2027 masa berlaku passpor yang dibuat hanya 5 tahun.
Mayan enak kan kalo dapet passport yg aktif sampe 2036. Makanya renew sekarang selagi masi dapet yg 10 tahun.
src: https://www.cnnindonesia.com/nasional/20251216212131-20-1307585/menteri-imipas-minta-paspor-seragam-2027-masa-berlaku-hanya-5-tahun

2026-01-12 14:05:13 UTC

Jangan nabung dalam bentuk rupiah. Rupiah akan hancur.

2026-01-12 13:59:28 UTC

"Jakarta tenggelam" hanya tinggal tunggu waktu. Sudah dimulai dari sebelah utara.

2026-01-12 13:54:14 UTC

Big disaster is coming.

2026-01-12 13:52:40 UTC

Bersyukur banget hari ini banjir Jakarta nggak sampai mengancam nyawa. Tetap siaga menyambut banjir besar. Pastikan baju pelampung (life vest) dan perahu karet disiapkan di tempat yang mudah dijangkau.