SparkL2 updated docs#3810
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motorina0 merged 6 commits intolnbits:devfrom Mar 5, 2026
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## dev #3810 +/- ##
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motorina0
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Feb 26, 2026
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| Spark L2 is a self-custodial funding source that uses a small Node.js sidecar to talk to the Spark network and expose an HTTP API. You can let LNbits run the sidecar internally, or run it yourself and point LNbits at it. | ||
| Self-custodial funding source using the [Spark L2](https://docs.spark.money/start/overview) network. Requires a Node.js [sidecar](https://github.com/lnbits/spark_sidecar) that bridges lnbits talking to Spark. Works in addition with any Spark-compatible seed (Wallet of Satoshi, BuhoGO, BlitzWallet). | ||
| You can let LNbits run the sidecar internally, or run it yourself and point LNbits at it. |
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internally not supported anymore
but we have a docker image (docker/sparkl2/Dockerfile). Docker image should be built automatically (cc: @dni )
motorina0
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Feb 26, 2026
| - `SPARK_L2_INTERNAL_SIDECAR_VERSION`: `0.1.1` | ||
| - `SPARK_L2_MNEMONIC`: `...` (optional; auto-generated if blank) | ||
| - `SPARK_L2_NETWORK`: `MAINNET` | ||
| ### Internal sidecar (LNbits-managed) |
motorina0
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Feb 26, 2026
| # optional tuning | ||
| # SPARK_L2_PAY_WAIT_MS=4000 | ||
| # SPARK_L2_PAY_POLL_MS=500 | ||
| # SPARK_L2_STREAM_KEEPALIVE_MS=15000 |
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we must add MNEMONIC back
Updated wallet documentation for clarity and consistency.
- Set Spark L2 privacy level to High in funding sources table - Remove duplicate external sidecar section in wallets guide - Replace TODO placeholder with SparkL2 config in .env.example
motorina0
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Mar 5, 2026
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Co-authored-by: Vlad Stan <[email protected]>
joelklabo
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Co-authored-by: Vlad Stan <[email protected]>
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Co-authored-by: Vlad Stan <[email protected]>
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Updated the docs to reflect new SparkL2 funding source in external and internal mode