Show HN: A social platform with music in focus. Download the app https://ift.tt/37nIDmd

Show HN: A social platform with music in focus. Download the app https://syncc.app/ February 17, 2021 at 10:46AM

Show HN: Crane – A self-hosted research literature management web service https://ift.tt/3qrqyLy

Show HN: Crane – A self-hosted research literature management web service https://ift.tt/3dofH1g February 17, 2021 at 01:02AM

Show HN: Static Tweet Rendering https://ift.tt/3u1kb3Q

Show HN: Static Tweet Rendering https://ift.tt/2LUEy1m February 16, 2021 at 07:29PM

Mask Up - It's the Law!

Mask Up - It's the Law!
By Kristen Holland

You may hear a new announcement on our vehicles or see new messages about masks being required by federal law. The spread of COVID-19 has led the federal government to enact a mask requirement for all public transportation conveyances. Here in San Francisco, that law means wearing a mask in Muni stations, when purchasing a ticket and while waiting for, boarding, riding or exiting transit. Failure to wear a mask can result in denial of boarding, removal from Muni and may carry federal penalties.

Muni customers are doing great when it comes to mask compliance, which consistently exceeds 95% (see chart). You get it. Wearing masks, physically distancing and riding Muni for only essential trips remain crucial to reducing the spread of COVID-19.

The SFMTA mask survey for the final week of January 2021 reported 97% compliance

And every week, our operators, fare inspectors and ambassadors hand out thousands of masks to those who don’t have one. Thank you for protecting our employees and each other.

During the first week of February 2021, the SFMTA distributed nearly 16,000 masks

Here’s more on the new law:

The federal mask requirement went into effect earlier this month and will continue until May 2021.

As a reminder, a properly worn mask:

• Completely covers the nose and mouth of the wearer
• Is secured to the head, including with ties or ear loops
• Fits snugly against the side of the face.

Face shields do not fulfill the requirements of the law. Instead, masks should be a solid piece of material without slits, exhalation valves, or punctures. Face coverings like scarves and bandanas do not meet this requirement. Visit the CDC website for tips on improving your mask to protect yourself and others.

Like other mask requirements, the law allows for some exemptions and exceptions. For example, the temporary removal of a mask is allowed in order to:

• Take oral medications for brief periods.
• Communicate with a person who is deaf or hard of hearing, when the ability to see the mouth is essential for communication.

The specifics of the federal law are outlined in the Transportation Security Administration Security Directive.

All state and local public health orders remain in effect.  For more information, visit SFMTA.com/COVID or call 311 within San Francisco or 415-701-4311. Free language assistance available.

 

 

 

 

Published February 16, 2021 at 06:24PM
https://ift.tt/37nngSe

Show HN: Lightweight, YouTube-based music player coded in C# https://ift.tt/3bamCZf

Show HN: Lightweight, YouTube-based music player coded in C# https://ift.tt/2NlqApG February 16, 2021 at 01:29PM

Launch HN: June (YC W21) – Two-click analytics reports on top of Segment data https://ift.tt/3aqZxlX

Launch HN: June (YC W21) – Two-click analytics reports on top of Segment data Hi HN! I’m Ferruccio, cofounder of June ( https://june.so ). We make it easy to set up dashboards for your most important product metrics. After a couple of years working in product teams, we realised that most companies measure the same things. So we created a set of templates that help you streamline the process of getting an insight from your data. With Amplitude/Mixpanel you have to know what you should be measuring and how. Getting to an insight starts from a blank canvas, is intimidating, and requires some expertise. With June, you pick a template, connect Segment, select the right events for your analysis, and get a report. We currently have 9 templates including Retention, Active Users, and Churning Users. We release a new one every week. We’re also starting to allow you to create and share your own templates. To try it out, go to https://ift.tt/2N59oVQ and pick a template you’d like to try. Connect your Segment account, select the events required for your analysis, and get your insights. Looking forward to ideas and feedback from the community! February 16, 2021 at 05:15PM

Show HN: Endgame – An AWS Pentesting tool to backdoor or expose AWS resources https://ift.tt/3jVJH68

Show HN: Endgame – An AWS Pentesting tool to backdoor or expose AWS resources https://ift.tt/3s3kglV February 16, 2021 at 03:16PM

Show HN: Pageturner – a community for building a reading habit https://ift.tt/3allnHw

Show HN: Pageturner – a community for building a reading habit https://ift.tt/3jUffZT February 16, 2021 at 11:54AM

Show HN: Opul – find and optimise your financial freedom age https://ift.tt/3pkZz2R

Show HN: Opul – find and optimise your financial freedom age https://ift.tt/3dehG8p February 16, 2021 at 10:25AM

Show HN: My ultimate make file for Golang services https://ift.tt/3qrn5N0

Show HN: My ultimate make file for Golang services https://ift.tt/3difFb6 February 16, 2021 at 08:11AM

Show HN: An async API and a CLI tool to search YouTube without using the DataAPI https://ift.tt/3bc0XQm

Show HN: An async API and a CLI tool to search YouTube without using the DataAPI https://ift.tt/2ZhIcFN February 16, 2021 at 01:28AM

Show HN: SendFiles.online – Make a file into a URL quickly https://ift.tt/3jONWQM

Show HN: SendFiles.online – Make a file into a URL quickly https://ift.tt/37kdgZN February 16, 2021 at 02:06AM

Show HN: Buy and Sell domain names before they expire https://ift.tt/2OL2p4V

Show HN: Buy and Sell domain names before they expire https://ift.tt/3rREFKk February 16, 2021 at 12:40AM

Jugando Partidas privadas Among Us en vivo jugando con subs en directo

Liked on YouTube: Jugando Partidas privadas Among Us en vivo jugando con subs en directo

Jugando Partidas privadas Among Us en vivo jugando con subs en directo

Powered by Restream https://restream.io/ Código de Fortnite de creador: Fox_Marc Conviértete en miembro de este canal para disfrutar de ventajas desde 0'99€: https://cb.run/miembros https://ift.tt/39EWu86 | https://ift.tt/38O1JTQ - Redes sociales Tik Tok - https://cb.run/Q2Vh - 3.7k Seguidores Cuenta canal principal de Youtube - https://cb.run/4Qo7 - 7 k Suscriptores Cuenta canal secundario 1k y subo minecraft - https://cb.run/canal2 300 Suscriptores Suscríbete y campanita Mis Islas Creativas - https://cb.run/IjTB Creative codes My island creative - https://cb.run/r9XK Códigos creativo Twitch - https://cb.run/Dgwp 1.5k Seguidores Streamloot - https://cb.run/loots - Cofres Instagram - https://cb.run/iUyA - 770 Seguidores Facebook - https://cb.run/face - 4 k Seguidores Twitter - https://cb.run/tweet - 280 Seguidores Wizebot - https://cb.run/wize Discord - https://ift.tt/3qxb9ZX - 250 Miembros en el server Blog - https://cb.run/blogfox - Blog Oficial Fox_Marc Instagram (TFM) Team Fox_Marc - https://ift.tt/3bI59t7 20 Programa Multi Streaming https://cb.run/QSPl ️ Si quieres contribuir con canal. Pincha aquí ️ https://cb.run/donar ️ https://cb.run/epG8 https://bit.ly/2T6F7CJ Para Donaciones ¡ Gana dinero con una aplicación móvil muy fácil! - https://cb.run/xjbH Si quieres donar gratis sin coste para ti para ayudar al canal descarga esta programa - https://cb.run/H44b - y doname lo que consigas Pregunta por los comentarios si quieres saber más... Trn Fox_Marc https://bit.ly/2FhOlsh #amongusdirecto #partidasprivadasamong #amongusendirecto #amongusenvivo #salaamongusvivo #AmongUs #DirectoAmongUs #AmongUsConSubs #directo #jugandoconsuscriptores #partidasprivadas #amongusjugandoconsubs #privadas #amongusespaña #amongusdirecto #amonguscat #amongusbcn jugando among us con subs en directo, among us en vivo jugando con subs, jugando among us con subs, directos de among us en vivo, among us en vivo con codigo, sala privada, salas privadas, directo de among us vivo, among us directo, Como jugar Partidas privadas en Among Us, among us, salas de among us en vivo, among us funny moments, among us juagndo con subs, jugando among us vivo, among us movil, among con subs, among us funny moments, among us gameplay, among us funny moments, among us gameplay, among us directo ahora, among us directo completo, among us directo en vivo, among us android, sala de among us en vivo, among us imposter, among us en vivo, among us en vivo en español, partidas privadas among us en vivo, partidas de among us en vivo, among us directo con subs, among us en directo,jugando among us directo, among us directo discord, jugando among us en directo, among us, among us gameplay, among us funny, among us juagndo con subs, among us en android, jugando among us con subs en directo, among us imposter, partidas privadas among us en vivo asia, salas de among us en vivo, partidas de among us en vivo, Como jugar Partidas privadas en Among Us, jugando among us directo con subs, among us directo discord,jugando among us en directo, directo de among us, among us funny, jugando among us, among us movil, among con subs, among us directo, among us directo en vivo, among us android, among us en vivo, among us en vivo en español, partidas privadas among us en vivo, sala de among us en vivo, partidas de among us en vivo, jugando among us directo, directos de among us en vivo, among us directo completo, among us en vivo jugando con subs, jugando among us con subs, jugando among us en directo,en vivo,región europa,región europa, among us europa, among europa, among us jugando con subs, partidas privadas among us en vivo norte america, partidas de among us en vivo eu, among us en directo,jugando among us directo con subs, jugando among us en directo,en vivo,region europa,región europa, among us europa, among europa, among us con subs directo, among us juagndo con subs,jugando among us, among us movil, sala privada, salas privadas, among con subs, among us android, partidas privadas among us en vivo europa, partidas de among us en vivo na, jugando among us directo con subs, jugando among us en directo, en vivo, region europa, región europa, among us europa, among europa, Como jugar Partidas privadas en Among Us, among us vivo, among us en vivo con codigo, among us en vivo con codigo, among us en directo,jugando among us con suscriptores, among us impostor,directo among us, among us directo,jugando con subs, among us directo completo, among us directo en vivo, among us en vivo, among us en vivo en español, partidas privadas among us en vivo, among us directo con subs, directo de among us, sala privada, salas privadas, sala de among us en vivo, salas de among us en vivo, directos de among us en vivo, jugando among us con subs, among us en vivo jugando con subs, jugando among us con subs en directo
via YouTube https://www.youtube.com/watch?v=39QfFG0zcW4

Show HN: Jam, an Open Source Clubhouse (w/ WebRTC) https://ift.tt/3dixZky

Show HN: Jam, an Open Source Clubhouse (w/ WebRTC) https://jam.systems February 14, 2021 at 11:32AM

Liked on YouTube: Jugando con subs en fortnite Con varelinsky y los panas

Jugando con subs en fortnite Con varelinsky y los panas

👑 Código de Fortnite de creador: Fox_Marc Conviértete en miembro de este canal para disfrutar de ventajas desde 0'99€: https://cb.run/miembros 👍 Tik Tok - https://cb.run/Q2Vh - 3.3k Seguidores Instagram (TFM) Team Fox_Marc - https://cb.run/vdjA 20 ✅Cuenta canal principal de Youtube - https://cb.run/4Qo7 - 3,4 k Suscriptores ✅Cuenta canal secundario 1k y subo minecraft - https://cb.run/Eiin 248 Suscriptores Suscríbete 👍 y campanita 🔔 👾 Twitch - https://cb.run/Dgwp 1k Seguidores Mis Islas Creativas - https://cb.run/IjTB Creative codes My island creative - https://cb.run/r9XK Códigos creativo La NUEVA TIENDA de FORTNITE HOY ✅|Fox Marc 🔴| día 23 de agosto 2020 📺 Streamloot - https://cb.run/loots - Cofres ✅ Instagram - https://cb.run/iUyA - 770 Seguidores 🚩 Facebook - https://cb.run/ffTg - 2.2k Seguidores 🐥 Twitter - https://cb.run/3Z5t - 280 Seguidores Wizebot - https://cb.run/wize Discord - https://cb.run/bA9n - 50 Seguidores 💟 Blog - https://cb.run/4cHi - Blog Oficial Fox_Marc Programa Multi Streaming https://cb.run/QSPl https://cb.run/23Fj - Red Streams 🕹️ Si quieres contribuir con canal. Pincha aquí ➡️ https://cb.run/donar ➡️ https://cb.run/epG8 🎁 https://bit.ly/2T6F7CJ Para Donaciones 🤑 Gana dinero con aplicación móvil muy fácil!! - https://cb.run/xjbH Si quieres donar gratis sin coste para ti para ayudar al canal descarga esta programa - https://cb.run/H44b - y doname lo que consigas Pregunta por los comentarios si quieres saber mas... Trn Fox_Marc https://bit.ly/2FhOlsh ¡AHORA! NUEVA TEMPORADA 4 DE FORTNITE (MARVEL CAPITULO 2) PASE DE BATALLA Y NUEVO MAPA! ¡AHORA! NUEVA TEMPORADA 4 DE FORTNITE (MARVEL CAPITULO 2) PASE DE BATALLA Y NUEVO MAPA! ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ Fortnite Capítulo 2 - La actualización de la temporada 4 está cerca, hoy hablaremos del Pase de batalla de la temporada 4 de Fortnite, las nuevas filtraciones e información de la temporada 4 , el tráiler de la temporada 4 del Capítulo 2 de Fortnite que llegaria con los nuevos superheroes del evento EN VIVO y final de esta temporada que se ha filtradro en la reciente Actualización de Fortnite v13.40 y la Fecha de lanzamiento oficial de la Temporada 4 en el Capítulo 2 de Fortnite o la Actualización de Fortnite v14.00 Mira el video completo para saber todo acerca de la nueva temporada y pase de batalla #Fortnite #Temporada4 #PaseDeBatalla #directofortnite #partidasprivadas #jugandoconsubs #tiendafortnitehoy #objetoshoy #nuevatienda #tiendadefortnite #latiendadehoy #FortniteTienda #Fortnite #fortnitebattleroyale #ps4 #xboxone #dance #fortniteshop #fornite #chatdevoz #fox_marc Interactive Entertainment,Fortnite,FoX_Marc,jugando con subs,jugando partidas privadas,fornite,jugando fortnite,jugando con suscriptores,suscriptores,subs,directos de fortnite,directo partidas privadas,jugando,directo con suscriptores,fortnite: battle royale,español,jugar,partidas privadas,privadas fortnite,partidas privadas en directo,fortnite directo,partidas personalizadas,minijuegos,jugando partidas privadas en fortnite,refriega, Fortnite,FoX_Marc,jugando con subs,jugando partidas privadas,fornite,jugando fortnite,jugando con suscriptores,suscriptores,directos de fortnite,directo partidas privadas,jugando,directo con suscriptores,fortnite: battle royale,partidas privadas,privadas fortnite,partidas privadas en directo,fortnite directo,partidas personalizadas,jugando partidas privadas en fortnite,fox_,fortnite gameplay,fortnite season 3,fortnite battle royale,partidas presonalizadas, Fortnite,FoX_Marc,jugando con subs,jugando partidas privadas,fornite,jugando fortnite,jugando con suscriptores,suscriptores,directos de fortnite,directo partidas privadas,jugando,directo con suscriptores,fortnite: battle royale,partidas privadas,privadas fortnite,partidas privadas en directo,fortnite directo,partidas personalizadas,jugando partidas privadas en fortnite,fox_,fortnite gameplay,fortnite season 3,fortnite battle royale,partidas presonalizadas fortnite, pase de batalla, fortnite pase de batalla, fortnite pase de batalla gratis, pase de batalla capitulo 2 temporada 4, temporada 4 fortnite, fortnite temporada 4, temporada 4 capitulo 2 fortnite, pase de batalla gratis, recompensas gratis, recompensas ocultas fortnite, recompensas en fortnite, pase de batalla gratis de fortnite, fortnite temporada 4 pase de batalla, fortnite temporada 4 capitulo 2, temporada 4, blend freshon, recompensas gratis fortnite, fortnite, pase de batalla, fortnite pase de batalla, fortnite pase de batalla gratis, pase de batalla capitulo 2 temporada 4, temporada 4 fortnite, fortnite temporada 4, temporada 4 capitulo 2 fortnite, pase de batalla gratis, recompensas gratis, recompensas ocultas fortnite, recompensas en fortnite, pase de batalla gratis de fortnite, fortnite temporada 4 pase de batalla, fortnite temporada 4 capitulo 2, temporada 4, blend freshon, recompensas gratis fortnite
via YouTube https://www.youtube.com/watch?v=zxw1F3JhMYk

Show HN: Hubstore – Showcase your Python desktop applications https://ift.tt/2ZlpvRC

Show HN: Hubstore – Showcase your Python desktop applications https://ift.tt/2MjHxkl February 15, 2021 at 11:02PM

Jugando con subs en fortnite Con varelinsky y los panas

Launch HN: Noya (YC W21) – Direct air capture of CO2 using cooling towers https://ift.tt/37jqZjH

Launch HN: Noya (YC W21) – Direct air capture of CO2 using cooling towers Hello HN! I'm Josh, one of the co-founders of Noya ( https://noyalabs.com ). Noya is designing a cheaper process to capture CO2 directly from the atmosphere. We do this by retrofitting industrial cooling towers owned and operated by other companies to perform carbon capture. We then sell the captured CO2 to companies that need it, and pay a piece of the proceeds to the companies that own the cooling towers. As the wildfires in California became worse and worse, my co-founder (and roommate at the time) Daniel and I became increasingly concerned that we weren't doing enough to be a part of the solution. The more that climate catastrophes became the norm, the more we became obsessed with one seemingly-simple question: If climate change is caused by having too much CO2 in the sky... can't we just reverse it by yanking CO2 out of the sky? Humans have known how to scrub CO2 out of gas mixtures for almost a century [1]; but, we haven't been able to widely apply this type of tech to scrubbing CO2 from the air because of its high cost. For example, one popular direct air capture project is estimated to capture 1M tons of CO2/year [2], but has an estimated equipment cost of $700M and all-in costs of ~$1.1B [3]. The single largest component of this cost is in the piece of equipment called the air contactor — the big wall of fans you see in the image linked above — which clocks in at $212M by itself. Yet fundamentally, all that air contactors do is put air into contact with something that captures CO2, whether it's an aqueous capture solution or some sort of solid sorbent. These costs felt astronomical to Daniel and I, so we set out with the singular focus to reduce the costs of carbon capture by reducing the costs of the air contactor. But no matter how we thought about it, we couldn’t get around the fact that to capture meaningful amounts of CO2, you need to move massive amounts of air since CO2 is very dilute in the atmosphere (0.04% by volume). Looking at the existing solutions, we began to understand why it makes sense to build something equally massive: so you can go after economies of scale. As Daniel and I were feeling stuck late one night, he got a call from his dad. They started talking about the refrigeration facility Daniel’s dad runs in Venezuela (where Daniel's from), and they started talking about the cooling towers at the facility. Cooling towers move air and water into contact with each other to provide cooling to industrial processes (descriptive video: https://www.youtube.com/watch?v=pXaK8_F8dn0 ). As Daniel listened to his dad, Daniel realized that if we could just add the blend of CO2-absorbing chemicals we had been developing into the water his dad’s cooling tower used, we could use it as an air contactor and achieve CO2 capture at the same time the cooling tower was cooling its processes. This eliminates the need to build millions of dollars worth of dedicated equipment to pluck CO2 from the sky. Our cooling-tower-based carbon capture process works as follows: we add our chemical carbon capture blend into a cooling tower's water, we connect the tower to some pieces of downstream processing equipment to regenerate the captured CO2, and then we pressurize the CO2 into cylinders for sale as "reclaimed CO2" to companies that need it. All of this is installed onto a cooling tower that another company already owns and operates. In exchange for letting us install this process on their towers, we will cover the cost of installation, and the companies will get a piece of the revenue generated through the sale of their CO2. We’re well on our way towards making this process a reality. We’ve partnered with a local farm to install our process in their cooling towers, and we've just produced CO2 using our industrial-scale prototype. We're excited for the opportunity to reverse climate change and ensure we have a future on this planet that is good. Please let us know what questions, concerns, or feedback you have about what we're building - I’ll be here all day! [1]: https://ift.tt/3u1lL5J [2]: https://ift.tt/2Zm55HY... [3]: https://ift.tt/3rVR3ZT... February 15, 2021 at 05:53PM

Show HN: ConstexprJS: A static site generator without a DSL https://ift.tt/2ZpDgOV

Show HN: ConstexprJS: A static site generator without a DSL https://ift.tt/3bea8Qy February 15, 2021 at 05:04PM

Liked on YouTube: Jugando Partidas privadas Among Us en vivo jugando con subs en directo

Jugando Partidas privadas Among Us en vivo jugando con subs en directo

Código de Fortnite de creador: Fox_Marc Conviértete en miembro de este canal para disfrutar de ventajas desde 0'99€: https://cb.run/miembros https://ift.tt/39EWu86 | https://ift.tt/38O1JTQ - Redes sociales Tik Tok - https://cb.run/Q2Vh - 3.7k Seguidores Cuenta canal principal de Youtube - https://cb.run/4Qo7 - 7 k Suscriptores Cuenta canal secundario 1k y subo minecraft - https://cb.run/canal2 300 Suscriptores Suscríbete y campanita Mis Islas Creativas - https://cb.run/IjTB Creative codes My island creative - https://cb.run/r9XK Códigos creativo Twitch - https://cb.run/Dgwp 1.5k Seguidores Streamloot - https://cb.run/loots - Cofres Instagram - https://cb.run/iUyA - 770 Seguidores Facebook - https://cb.run/face - 4 k Seguidores Twitter - https://cb.run/tweet - 280 Seguidores Wizebot - https://cb.run/wize Discord - https://ift.tt/3qxb9ZX - 250 Miembros en el server Blog - https://cb.run/blogfox - Blog Oficial Fox_Marc Instagram (TFM) Team Fox_Marc - https://ift.tt/3bI59t7 20 Programa Multi Streaming https://cb.run/QSPl ️ Si quieres contribuir con canal. Pincha aquí ️ https://cb.run/donar ️ https://cb.run/epG8 https://bit.ly/2T6F7CJ Para Donaciones ¡ Gana dinero con una aplicación móvil muy fácil! - https://cb.run/xjbH Si quieres donar gratis sin coste para ti para ayudar al canal descarga esta programa - https://cb.run/H44b - y doname lo que consigas Pregunta por los comentarios si quieres saber más... Trn Fox_Marc https://bit.ly/2FhOlsh #amongusdirecto #partidasprivadasamong #amongusendirecto #amongusenvivo #salaamongusvivo #AmongUs #DirectoAmongUs #AmongUsConSubs #directo #jugandoconsuscriptores #partidasprivadas #amongusjugandoconsubs #privadas #amongusespaña #amongusdirecto #amonguscat #amongusbcn jugando among us con subs en directo, among us en vivo jugando con subs, jugando among us con subs, directos de among us en vivo, among us en vivo con codigo, sala privada, salas privadas, directo de among us vivo, among us directo, Como jugar Partidas privadas en Among Us, among us, salas de among us en vivo, among us funny moments, among us juagndo con subs, jugando among us vivo, among us movil, among con subs, among us funny moments, among us gameplay, among us funny moments, among us gameplay, among us directo ahora, among us directo completo, among us directo en vivo, among us android, sala de among us en vivo, among us imposter, among us en vivo, among us en vivo en español, partidas privadas among us en vivo, partidas de among us en vivo, among us directo con subs, among us en directo,jugando among us directo, among us directo discord, jugando among us en directo, among us, among us gameplay, among us funny, among us juagndo con subs, among us en android, jugando among us con subs en directo, among us imposter, partidas privadas among us en vivo asia, salas de among us en vivo, partidas de among us en vivo, Como jugar Partidas privadas en Among Us, jugando among us directo con subs, among us directo discord,jugando among us en directo, directo de among us, among us funny, jugando among us, among us movil, among con subs, among us directo, among us directo en vivo, among us android, among us en vivo, among us en vivo en español, partidas privadas among us en vivo, sala de among us en vivo, partidas de among us en vivo, jugando among us directo, directos de among us en vivo, among us directo completo, among us en vivo jugando con subs, jugando among us con subs, jugando among us en directo,en vivo,región europa,región europa, among us europa, among europa, among us jugando con subs, partidas privadas among us en vivo norte america, partidas de among us en vivo eu, among us en directo,jugando among us directo con subs, jugando among us en directo,en vivo,region europa,región europa, among us europa, among europa, among us con subs directo, among us juagndo con subs,jugando among us, among us movil, sala privada, salas privadas, among con subs, among us android, partidas privadas among us en vivo europa, partidas de among us en vivo na, jugando among us directo con subs, jugando among us en directo, en vivo, region europa, región europa, among us europa, among europa, Como jugar Partidas privadas en Among Us, among us vivo, among us en vivo con codigo, among us en vivo con codigo, among us en directo,jugando among us con suscriptores, among us impostor,directo among us, among us directo,jugando con subs, among us directo completo, among us directo en vivo, among us en vivo, among us en vivo en español, partidas privadas among us en vivo, among us directo con subs, directo de among us, sala privada, salas privadas, sala de among us en vivo, salas de among us en vivo, directos de among us en vivo, jugando among us con subs, among us en vivo jugando con subs, jugando among us con subs en directo
via YouTube https://www.youtube.com/watch?v=tUb-W5rDgWM

Show HN: We Broke Topcoder Ratings https://ift.tt/2LRlIIr

Show HN: We Broke Topcoder Ratings https://ift.tt/3qnYE2V February 15, 2021 at 05:05PM

Launch HN: Pyroscope (YC W21) – Continuous profiling software https://ift.tt/2Zhzo2L

Launch HN: Pyroscope (YC W21) – Continuous profiling software Hi HN! Dmitry and Ryan here. We're building Pyroscope ( https://pyroscope.io/ ) — an open source continuous profiling platform ( https://ift.tt/2L1jeqC ). We started working on it a few months ago. I did a lot of profiling at my last job and I always thought that profiling tools provide a ton of value in terms of reducing latency and cutting cloud costs, but are very hard to use. With most of them you have to profile your programs locally on your machine. If you can profile in production, you often have to be very lucky to catch the issues happening live, you can't just go back in time with these tools. So I thought, why not just run some profiler 24/7 in production environment? I talked about this to my friend Ryan and we started working. One of the big concerns we heard from people early on was that profilers typically slow down your code, sometimes to the point that it's not suitable for production use at all. We solved this issue by using sampling profilers — those work by looking at the stacktrace X number of times per second instead of hooking into method calls and that makes profiling much less taxing on the CPU. The next big issue that came up was storage — if you simply get a bunch of profiles, gzip them and then store them on disk they will consume a lot of space very quickly, so much that it will become impractical and too expensive to do so. We spent a lot of energy trying to come up with a way of storing the data that would be efficient and fast to query. In the end we came up with a system that uses segment trees [1] for fast reads (basically each read becomes log(n)), and tries [2] for storing the symbols (same trick that's used to encode symbols in Mach-O file format for example). This is at least 10 times more efficient than just gzipping profiles. After we did all of this we ran some back of the envelope calculations and the results were really good — with this approach you can profile thousands of apps with 100Hz frequency and 10 second granularity for 1 year and it will only cost you about 1% of your existing cloud costs (CPU + RAM + Disk). E.g if you currently run 100 c5.large machines we estimate that you'll need just one more c5.large to store all that profiling data. Currently we have support for Go, Python and Ruby and the setup is usually just a few lines of code. We plan to release eBPF, Node and Java integrations soon. We also have a live demo with 1 year of profiling data collected from an example Python app https://ift.tt/3ajTu2z... And that's where we are right now. Our long term plan is to keep the core of the project open source, and provide the community with paid services like hosting and support. The hosted version is in the works and we aim to do a public release in about a month or so. Give it a try: https://ift.tt/2L1jeqC . We look forward to receiving your feedback on our work so far. Even better, we would love to hear about the ways people currently use profilers and how we can make the whole experience less frustrating and ultimately help everyone make their code faster and cut their cloud costs. [1] https://ift.tt/1OF8Adn [2] https://ift.tt/1ezUKqz February 15, 2021 at 05:00PM

Show HN: I Made a Chat Server https://ift.tt/3deRKJK

Show HN: I Made a Chat Server https://ift.tt/3u34Dwi February 15, 2021 at 01:06PM