I do not know of such community but I want to encourage you to post in the existing FOSS communities, i don't think self promo would be badly received (ask the mods just in case) so don't be afraid to share your projects!
Community Promo
Promote your favourite communities here, or ask about a community you are looking for.
This includes groups for Lemmy, Kbin, Telegram, Matrix, Discord, Reddit, etc.
๐ฃ๏ธ Sharing a community:
Please make a descriptive title describing the purpose of the community, and link the community in the post URL or body fields.
When linking to your community, use this universal format: [email protected]
๐ Searching for a community:
Include details about what you are looking for
Rules:
- Reposts: Don't post about the same community more than once a month. However, you can share new details as needed (ex. upcoming event, updated content)
- Instance Rules: Follow instance rules when posting and commenting. See sidebar here
Rule breaking posts will be removed at moderator discretion (ex. scams, dangerous links, duplicate posts)
This community is also on Matrix and Discord, but those spaces are not managed by the moderation team here.
Seconded.
Please do post your projects in [email protected] and similar foss related communities. Just because news is posted more often doesn't mean only news should be posted there! Projects don't tend to progress at the same pace news does anyway. If the folks there don't like it they will probably suggest an alternative.