Maybe we could add a mechanism where proj grid files can be imported to
the user profile, so any user could download grids.
Some caveats to avoid with multi profile management. I'd be in favor of
storing proj grids once per user $APPDATA profile, not in each QGIS profile
Bien cordialement,
Régis Haubourg
On 24/03/2026 10:29, Matthias Kuhn via QGIS-Developer wrote:
Hi all,
Thanks for raising this discussion, Tim.
There recently was a discussion about that on a github issue.
The new macOS packages didn't ship grid packages out of the box in the
beginning and this was a blocker for some users so I ended up bundling
the data files again with the macOS packages. The full discussion can
be seen here https://github.com/qgis/QGIS/issues/64486
Key takeaways for me: If we want to split this apart, we need to make
it very easy for users to install missing bits, the current process
would need some improvements. If this is shipped as a separate
installer package, we need to make sure it works across all platforms.
Kind regards
Matthias
On Tue, Mar 24, 2026 at 9:33 AM Alexander Bruy via QGIS-Developer
<[email protected]> wrote:
If I'm not wrong, our standalone installer is based on the OSGeo4W
and installs the latter. So users can easily
use the OSGeo4W installer to download any additional dependencies
they want/need.
Another option would be to add an option to the
standalone installer to download grids, similarly to what we had
in the old NSIS installer for Alaska dataset.
пн, 23 бер. 2026 р. о 09:20 Tim Sutton via QGIS-Developer
<[email protected]> пише:
Hi all
Here in the infrastructure management club for QGIS we have
been embarking on a plan to slowly divest ourselves of 'big
tech'. At the end of last year we switched off cloudflare CDN
and implemented our own caching servers. At that time we were
doing around 130TB of throughput (including what was being
soaked up by Cloudflare). As of last month we did 430TB of
throughput without the help of Cloudflare.
We are trying to optimise costs - that bandwidth alone cost us
in the neighbourhood of 500€ per month. To reduce costs we can
approach the problem in two way:
1. optimise the infrastructure - we (QGIS Devops team) are
busy looking into ways to do that...
2. reduce the download size...
We are wondering if the datum shift files could be split out
from the main installer and fetched as an optional extra? Or
maybe on demand as you need them? We could set up some
infrastructure for hosting them, but we would need some help
on the application side to implement logic to go and grab
shift files that are not locally cached. Is anyone able to
help with this?
Regards
Tim
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