LiveSync Bridge

m0sh1.cc fork

This Forgejo-first fork is maintained for the m0sh1.cc self-hosted LiveSync tooling stack. The canonical repository is https://git.m0sh1.cc/isityael/livesync-bridge; GitHub is maintained as a public push mirror at https://github.com/isityael/livesync-bridge.

What is this?

This is a custom replicator between Self-hosted LiveSync remote vaults and storage. The Unified Version of filesystem-livesync and livesync-classroom.

A Vault or storage can be synchronised with vaults or storage. You can even combine them. Of course, different passphrases for each vault could be used. And, you can synchronize documents under the specified folder on the vault, to another vault's specified one.

Of course, it is multi-directional!

How to use

Prerequisites

• Node.js 26 and PNPM 11 via Corepack are required.

Simply run

1. Clone the GitHub Repository

git clone --recursive https://github.com/isityael/livesync-bridge

2. Open the config file dat/config.sample.json, edit and save to dat/config.json. (You do not have to worry, the sample is in the following section).
3. Simply run like this.

$ corepack enable
$ pnpm install --frozen-lockfile
$ pnpm run build
$ pnpm start

Note: If you want to scan all storage and databases from the beginning, please run with --reset.

Docker Instructions

1. Clone the GitHub Repository

git clone --recursive https://github.com/isityael/livesync-bridge

2. Open the config file dat/config.sample.json, edit and save to dat/config.json. (The storage folder has to start with "data/" to be in the volume)

3. Simply run like this.

docker compose up -d

The sole canonical container image is ghcr.io/isityael/livesync-bridge. The GitHub publication workflow blocks critical vulnerabilities on the immutable digest, keylessly signs that digest, and only then applies canonical tags. The image is built once with BuildKit provenance and an SBOM.

Health and recovery

GET /healthz listens on port 8080 by default. Set LSB_HEALTH_PORT to change the port. Kubernetes startup, readiness, and liveness probes may use the same path: only healthy returns HTTP 200; startup, stale, and unhealthy return HTTP 503. The response includes phase, checkpoint and remote-activity times, conflict count, and replay state, but never credentials or note content.

Persist LSB_STATE_DIR across restarts. Malformed state is quarantined and forces a full remote replay before local tombstones can be sent. Replay and watch callbacks are processed durably in sequence; a failed destination write does not advance the checkpoint. Each CouchDB destination has its own confirmed baseline and per-checkpoint tombstone budget. Additional controls are:

• LSB_MAX_CONSECUTIVE_FAILURES (default 3)
• LSB_RETRY_DELAY_MS (default 10000)
• LSB_STALE_AFTER_MS (default 300000)
• LSB_MAX_TOMBSTONES_PER_CHECKPOINT (default 10)

Configuration

The configuration file consists of the following structure.

{
  "peers": [
    {
      "type": "couchdb", // Type should be `couchdb or storage`
      "name": "test1", // Should be unique
      "group": "main", // we can omit this.
      "database": "test",
      "username": "admin",
      "password": "password",
      "url": "http://localhost:5984",
      "customChunkSize": 100,
      "minimumChunkSize": 20,
      "passphrase": "passphrase", // E2EE passphrase, if you do not enabled, leave it blank.
      "obfuscatePassphrase": "passphrase", // Path obfuscation passphrase, if you do not enabled, leave it blank. if enabled, set the same value of passphrase.
      "baseDir": "blog/", // Sharing folder
      "useRemoteTweaks": true, // Overwrite customChunkSize or minimumChunkSize, and check configuration matches
    },
    {
      "type": "couchdb",
      "name": "test2", // We can even synchronise the same databases as long as they have different names in here.
      "group": "main", // we can omit this.
      "database": "test2",
      "username": "admin",
      "passphrase": "passphrase",
      "password": "password",
      "url": "http://localhost:5984",
      "customChunkSize": 100,
      "minimumChunkSize": 20,
      "obfuscatePassphrase": "passphrase",
      "baseDir": "xxxx/",
    },
    {
      "type": "storage",
      "name": "storage-test1",
      "group": "main", // we can omit this.
      "baseDir": "./vault/", // The folder which have been synchronised.
      "processor": {
        // The processor configuration. You can omit this.
        "cmd": "script/test.sh", // The programme which run at file modification or deletion.
        "args": ["$filename", "$mode"],
        // The modified file is set to $filename. The mode is set to `deleted` or `modified`.
        // $filename and $mode have been set also in environment variables.
      },
      "scanOfflineChanges": true,
      "useChokidar": true, // Node runtime uses chokidar for filesystem watching.
    },
  ],
}

Realistic example

name	database_uri / path	CouchDB username	CouchDB password	vault E2EE passphrase	baseDir
private vault of Cornbread	http://localhost:5984/classroom_cornbread	cornbread	tackle	glucose	shared/
shared vault	http://localhost:5984/classroom_shared	common_user	resu_nommoc	cocoa
private vault of Vanilla	http://localhost:5984/classroom_vanilla	vanilla	liberty	smock	kyouyuu/
storage	./vault/

Cornbread's every document under "shared" is synchronized with the top of the shared vault:

Cornbread	shared
document1	Not transferred
document2	Not transferred
shared/shared_doc1	shared_doc1
shared/sub/sub_doc	sub/sub_doc

Vanilla's every document under "kyouyuu" is synchronized with the top of the shared vault:

Vanilla	shared
documentA	Not transferred
documentB	Not transferred
kyouyuu/some_doc	some_doc
kyouyuu/sub/some_sub_doc	sub/some_sub_doc

Totally, all files are synchronized like this:

Cornbread	shared	Vanilla
document1	Not transferred
document2	Not transferred
	Not transferred	documentA
	Not transferred	documentB
shared/shared_doc1	shared_doc1	kyouyuu/shared_doc1
shared/some_doc	some_doc	kyouyuu/some_doc
shared/sub/some_sub_doc	sub/some_sub_doc	kyouyuu/sub/some_sub_doc
shared/sub/sub_doc	sub/sub_doc	kyouyuu/sub/sub_doc

... with the configuration below:

{
  "peers": [
    {
      "type": "couchdb", // Type should be `couchdb or storage`
      "name": "cornbread", // Should be unique
      "url": "http://localhost:5984",
      "database": "classroom_cornbread",
      "username": "cornbread",
      "password": "tackle",
      "passphrase": "glucose", // E2EE passphrase, if you do not enabled, leave it blank.
      "obfuscatePassphrase": "glucose", // Path obfuscation passphrase, if you do not enabled, leave it blank. if enabled, set the same value of passphrase.
      "customChunkSize": 100,
      "minimumChunkSize": 20,
      "baseDir": "shared/", // Sharing folder
    },
    {
      "type": "couchdb", // Type should be `couchdb or storage`
      "name": "shared", // Should be unique
      "url": "http://localhost:5984",
      "database": "classroom_shared",
      "username": "common_user",
      "password": "resu_nommoc",
      "passphrase": "cocoa", // E2EE passphrase, if you do not enabled, leave it blank.
      "obfuscatePassphrase": "cocoa", // Path obfuscation passphrase, if you do not enabled, leave it blank. if enabled, set the same value of passphrase.
      "customChunkSize": 100,
      "minimumChunkSize": 20,
      "baseDir": "", // Sharing folder
    },
    {
      "type": "couchdb",
      "name": "vanilla", // We can even synchronise the same databases as long as they have different names in here.
      "url": "http://localhost:5984",
      "database": "classroom_vanilla",
      "username": "vanilla",
      "password": "liberty",
      "passphrase": "smock",
      "obfuscatePassphrase": "smock",
      "customChunkSize": 100,
      "minimumChunkSize": 20,
      "baseDir": "kyouyuu/",
    },
    {
      "type": "storage",
      "name": "storage-test1",
      "baseDir": "./vault/", // The folder which have been synchronised.
    },
  ],
}