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NBPR - Nerves Binary Package Repository
I believe James Harton put the idea forward and he and Frank worked it over. Check out the NBPR repo . The idea is to pre-compile popular binaries for Nerves' toolchains and Buildroot setup, for the various official systems, and provide build tooling for your to set it up for your own private repos if need be.
Essentially it can let you go "hey, I need htop on this device". And get htop as a binary pre-compiled with no need for making a custom system. This is a big deal for Nerves.
There is a PR that can do similar things for Kernel work. Which has let us do experiments for pre-compiling container support. I have some pending work for supporting the very annoying Raspberry Pi AI Kit runtimes and drivers through this.
This lets us keep the Nerves systems lean and easy to support while letting you contribute the packages you depend on to a common repository for everyone to benefit from. We have high hopes for what this could do over time. It could conceivably remove the need for dedicated systems for container support, for kiosks. Adding Python would just one new dep in mix.exs.
The key is that this requires your engagement . If you want this to be a thing. Try it for your needs, use it. Most of us working on Nerves have a little bit less of a need for this. Our pain tolerance is high already. We want this to work out but we want to see your interest and have help proving it out. If it works well, no reason it can't become an official thing.
NervesConf EU at Goatmire Elixir
The Goatmire Elixir website has all the planned speakers and workshop. Check it out :)
Hotel information and discounts are also on the site right now.
Next meetup: Herman & routers
If you've attended any Elixir event and especially a Nerves event anywhere in Europe you have met Herman. An OG and awesome constant of support for the project this lovely gentleman always shows up.
He hasn't been presenting much though. Day to day he wrangles WiFi for commercial customers and he does a lot with OpenWRT and finally he has a device suitable to use Nerves on, rather than OpenWRT. We look forward to hearing all about it.
Register now to not miss it later.
Herman verschooten
Software updates
System updates
- Drop pigpio due to Buildroot removing it and it doesn’t compile with GCC 15.3.
This is a significant update to many components. Please take care in updating as many packages have received security and feature updates.
Changes
- Erlang updated from 28.5.0.1 to 29.0.2
- Buildroot updated from 2025.11.3 to 2026.05
- Added rpi-utils package since rpi-userland is no longer available
- Updated libp11. If you’re using NervesKey or an ATECC608, you must update nerves_key_pkcs11 or you’ll get a segfault on TLS connections.
- Erlang 26, 27, and 28 are now actively updated to their latest patch releases at the time of this release if you can’t use 29.0.2.
Package updates
Raspberry Pi Systems
- Support delta firmware updates for files in the boot partition (probably not for kiosk systems, unconfirmed).
Updated dependencies
- nerves_system_br v1.34.0 release notes
- GCC 15.3.0
- Erlang/OTP 29.0.2
- linux 6.18.33 (Raspberry Pi 1.20260521 tag)
- Buildroot 2025.05.2
- Use Liberation fonts as defaults. This fixes many rendering issues.
- Enable WOFF2 support. v2.0.5 was missing a needed option.
This is a major update with security and feature updates throughout.
Changes
- Use Liberation fonts as defaults. This fixes many rendering issues.
- Enable WOFF2 support. v2.0.5 was missing a needed option.
Updated dependencies
- nerves_system_br v1.34.0 release notes
- GCC 15.3.0
- Erlang/OTP 29.0.2
- linux 6.18.33 (Raspberry Pi 1.20260521 tag)
- Buildroot 2025.05.2
This is a major update with security and feature updates throughout.
Changes
- Remove Hailo AI drivers. The kernel driver was removed from upstream and userland integration has become more complicated for us to support.
Other systems
Overall security and feature updates. New compilers, kernels and so forth.
Updated dependencies
- nerves_system_br v1.34.0 release notes
- GCC 15.3.0
- Erlang/OTP 29.0.2
- linux 6.18.34
- Buildroot 2025.05.2
- Use Liberation fonts as defaults. This fixes many rendering issues.
- Enable WOFF2 support. v2.0.5 was missing a needed option.
Updated dependencies
Updated dependencies
This updates many dependencies especially in the Nerves systems. It also adds support for the Nerves starter kit (trellis).
- Updates
- Update Nerves systems to nerves_system_br v1.34.0
- Temporarily remove Nx packages added in v0.19.1 due to a new runtime crash on boot
- Temporarily remove GRiSP2, OSD32MP1, and NPI IMX6ULL until their Linux kernels can be updated
- Update all dependencies
This release brings in quite a few updates and experiments with using D-Bus to control Cog rather than relying on restarting it to reset the URL.
- Changes
- Update Nerves systems to use OTP 29, GCC 15.3, and Linux 6.18
- Fix font rendering when using system fonts
- Several supervision tree simplifications
This release adds support for Nerves Starter Kit and Goatmire badge.
- Updates
- Update Nerves systems to `nerves_system_br v1.34.0 (Erlang/OTP 29.0.2, Buildroot 2026.05) Remove GRiSP2, OSD32MP1, and NPI imx6ull. These devices need Linux kernel updates to work with the new GCC 15.3 toolchains. Bump many dependencies to their latest
- Changes
- Remove OSD32MP1 and GRiSP2 from the default systems added to new projects. This hopefully is temporary until these systems can have their Linux kernels updated.
- Changes
- Fix issues preventing the use of libp11 versions after 0.4.12. (@lawik)
This release bumps GCC from 14.2 to 15.3. While the toolchain is produced in a similar manner to past releases, the code in thie project has been completely changed to use a template toolchain project to create the corresponding Elixir projects.
- Changes
- Create package documentation that lists component package versions
- Pass through component licenses to hex.pm metadata. You will see GPLv3 licenses show up now due to GCC being a GPLv3 project.
- Remove the :nerves_toolchain_ctng project completely
- Remove code to build toolchain artifacts using Nerves tooling. This actually doesn’t remove a feature since Nerves didn’t build toolchains automatically. This feature was removed many years ago, but the code was left around.
See generated toolchains for version information.
Changes
- Support setting the drive mode for open drain/collector GPIOs. See the :drive_mode option. (@gworkman)
- Add drive mode verification to Circuits.GPIO.Diagnostics
Bug fixes
- Fix memory leak when receiving GPIO interrupts
- Fix false failure in Circuits.GPIO.Diagnostics when testing pull mode support
- Changes
- Remove warning when using Elixir 1.20
- Minor doc updates throughout
Community projects
- Start SubscriptionRegistry before Manager so a fast broker connect can no longer crash the supervision tree with an unknown registry error
- Button entity referenced an undefined @action; use the @payload_press module attribute instead
An open source NVR implementation by Evercam.
Core/UI
- Realtime Camera Stats (stats tab) by @MosesMuiru in https://github.com/evercam/ex_nvr/pull/786
- Fade placeholder contrast in light mode by @lawik in https://github.com/evercam/ex_nvr/pull/847
- Add device options to control recording by @lawik in https://github.com/evercam/ex_nvr/pull/846
- Add player to device details tab by @gBillal in https://github.com/evercam/ex_nvr/pull/848
- Improve light mode theme by @gBillal in https://github.com/evercam/ex_nvr/pull/849
- Add settings tab to device details by @gBillal in https://github.com/evercam/ex_nvr/pull/850
- Add danger zone to settings tab by @gBillal in https://github.com/evercam/ex_nvr/pull/851
- Move start/stop recording to device details tab by @gBillal in https://github.com/evercam/ex_nvr/pull/852
- Triggers by @lawik in https://github.com/evercam/ex_nvr/pull/860
- Auto configure third stream if available by @gBillal in https://github.com/evercam/ex_nvr/pull/872
- Add option to choose storage stream. by @gBillal in https://github.com/evercam/ex_nvr/pull/873
- [experiment] Fallback to client decoding if webrtc not supported. by @gBillal in https://github.com/evercam/ex_nvr/pull/874
- Make third stream default for storage if available by @gBillal in https://github.com/evercam/ex_nvr/pull/884
- Switch to Apache license by @lawik in https://github.com/evercam/ex_nvr/pull/886
- Add unit tests for Authorization role policy by @lawik in https://github.com/evercam/ex_nvr/pull/905
- Add system health dashboard with Mobius-backed metrics history by @lawik in https://github.com/evercam/ex_nvr/pull/885
Bug Fixes
- Handle schedules missing day keys in SnapshotUploader (#15) by @lawik in https://github.com/evercam/ex_nvr/pull/891
- Release NIF resources on constructor failure by @lawik in https://github.com/evercam/ex_nvr/pull/903
- Test unmatchable case in sub stream startup by @lawik in https://github.com/evercam/ex_nvr/pull/908
- Give converted frames their own buffers in convert_frames by @lawik in https://github.com/evercam/ex_nvr/pull/911
- Do not crash victron process when connecting to serial device timeout by @gBillal in https://github.com/evercam/ex_nvr/pull/916
Nerves
- Add mksquashfs flags that improve deltas by @lawik in https://github.com/evercam/ex_nvr/pull/858
- Giraffe board ups support by @gBillal in https://github.com/evercam/ex_nvr/pull/898
- Monitor generator state in giraffe board by @gBillal in https://github.com/evercam/ex_nvr/pull/910
- Send system status to remote server before shutting down by @gBillal in https://github.com/evercam/ex_nvr/pull/914
- handle graceful {:shutdown, reason} command exits (#54) by James Harton
- stop commands gracefully so cancellation isn’t logged as a crash (#167) by James Harton
- defn math core, FK, all-link transforms, and analytical Jacobians (#147) (#161) by James Harton
- add shared BB.Error.Invalid.Bridge.* error modules (#145) (#159) by James Harton
- fetch control table lazily so the bridge survives controller startup ordering (#61) by James Harton
- disarm must confirm torque is disabled, not fire-and-forget (#57) (#58) by James Harton
- support bb 0.20.3 robot_opts/0 child spec (#49) by James Harton
- fetch control table lazily so the bridge survives controller startup ordering (#61) by James Harton
- disarm must confirm torque is disabled, not fire-and-forget (#51) (#57) by James Harton
- support bb 0.20.3 robot_opts/0 child spec (#48) by James Harton
- correct STS3215 speed register unit (steps/second) (#45) by James Harton
- pin bitstring size variables for Elixir 1.20 (#27) by James Harton
- accumulate and throttle joint updates in
the 3D view and sliders (#79) by James Harton
- don’t time out continuous commands; add cancel control (#78) by James Harton
- push the full joint
pose to the 3D view, not one joint per frame (#86) by James Harton
- don’t time out continuous commands; add cancel control (#85) by James Harton
- throttle dashboard rendering under high-rate sensor traffic by James Harton
- express FABRIK (position + orientation) as composable defns (#60) by James Harton
- disarm reports failure instead of false success on dead controller (#57) (#63) by James Harton
- support bb 0.20.3 robot_opts/0 child spec (#52) by James Harton
- Fix encoding of structured error data.
- @maehjam made their first contribution in https://github.com/grisp/jarl/pull/4
You can buy an official Nerves shirt from oswag . Fair trade, organic and high-quality. Family-scale business.
Got questions?
Trouble-shooting is best done on the Nerves Forum over at Elixir's Forum. But if you have big-picture questions you would like to ask around Nerves, feel free to send them in and we might just have ourselves a column here.
Participating in the community
The Nerves community is found wherever Elixirists gather. But our primary focus is the Nerves Discord . You are very welcome to join us there.
Also fine to throw questions into the Elixir Forum's Nerves section .
How you can help Nerves
Contribute in the way that works for you:
- Send corrections or improvements for documentation wherever it fails to help you.
- Write about Nerves, give talks about Nerves. Make videos about Nerves. It is all good.
- Write or port a new hardware library and include it in the Elixir Circuits collection .
- Get in touch about taking over maintenance duties for some libraries, we might be able to provide you hardware.
- Apply for an EEF stipend on something Nerves-related and build it. We can help if you have questions about this.
Finally, if you have questions about the newsletter or want to suggest something you can simply respond to this email.
- Lars
