# NixOS Foundation's Financial Summary: A Transparent Look into 2022

**URL:** https://discourse.nixos.org/t/nixos-foundations-financial-summary-a-transparent-look-into-2022/28107
**Category:** NixOS Foundation
**Created:** [May 12, 2023, 3:00pm UTC](https://discourse.nixos.org/t/nixos-foundations-financial-summary-a-transparent-look-into-2022/28107 "2023-05-12T15:00:06Z")
**Posts on this page:** 1
**Showing post:** 16

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### Author: ![edolstra](https://discourse.nixos.org/user_avatar/discourse.nixos.org/edolstra/32/84_2.png) [@edolstra](https://discourse.nixos.org/u/edolstra)
#### Post date: [May 30, 2023, 2:14pm UTC](https://discourse.nixos.org/t/nixos-foundations-financial-summary-a-transparent-look-into-2022/28107/16 "2023-05-30T14:14:37Z")

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Some info on our AWS costs (primarily `cache.nixos.org` and `releases.nixos.org`):

- The S3 bucket for `cache.nixos.org` stores **667M objects** , with 107 TiB in standard storage and 318 TiB in infrequent access storage, so **425 TiB** in total.

- The S3 bucket for `nix-releases` (i.e. [https://releases.nixos.org](https://releases.nixos.org)) is **25.1 TiB** (mostly ISO images).

- The S3 storage costs for our sponsor are about **$5500** per month, after a $2300 enterprise discount.

- The S3 transfer costs are about **$900** per month, which is mostly from **29.5 TiB** of traffic between S3 and Fastly for `cache.nixos.org`, and 2.6 TiB for `releases.nixos.org`. (This also appears to have a discount since the costs are $0.03 per GiB.)

- Our Fastly traffic in April was **1508 TiB** , so the CDN is amazingly effective.

- The runtime closure of all non-beta NixOS releases (i.e. the store paths reachable from the `store-paths.xz` files in [Channels for NixOS project(s)](https://releases.nixos.org/?prefix=nixos/)) is 13M store paths, **27.1 TiB**. So garbage-collecting `cache.nixos.org` to only keep NixOS releases would shrink it to 6.3% of its current size.

- The runtime closure of all non-beta NixOS releases and all Nixpkgs releases is 51M store paths, **91.4 TiB** , so about 21% of the bucket. Unfortunately Nixpkgs has no stable releases, they’re all marked as “pre”.

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_[View the full topic](https://discourse.nixos.org/t/nixos-foundations-financial-summary-a-transparent-look-into-2022/28107)._