diff --git a/DESCRIPTION b/DESCRIPTION
index 51e03dc..bff30b1 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,6 +1,6 @@
 Package: whatarelief
 Title: Get topography elevation and online imagery data
-Version: 0.0.1.9011
+Version: 0.0.1.9012
 Authors@R: person("Michael D.","Sumner", role = c("aut", "cre"), email = "mdsumner@gmail.com")
 Description: Obtain elevation data, topography relief for any region on the Earth. 
  Topography and bathymetry data is supported by default. Sensible defaults exist 
@@ -16,18 +16,20 @@ Description: Obtain elevation data, topography relief for any region on the Eart
 License: MIT + file LICENSE
 Encoding: UTF-8
 LazyData: true
-RoxygenNote: 7.2.3
+RoxygenNote: 7.3.0
 Imports: 
-    spatial.datasources,
+    sds,
     readr,
     vapour (>= 0.9.3.9003)
 Suggests: 
     terra,
     raster,
     knitr,
-    rmarkdown, 
-    ximage
+    rmarkdown,
+    ximage,
+    testthat (>= 3.0.0)
 VignetteBuilder: knitr
 URL: https://github.com/hypertidy/whatarelief
 BugReports: https://github.com/hypertidy/whatarelief/issues
-Remotes: hypertidy/ximage, hypertidy/vapour, hypertidy/spatial.datasources
+Remotes: hypertidy/ximage, hypertidy/vapour, hypertidy/sds
+Config/testthat/edition: 3
diff --git a/NAMESPACE b/NAMESPACE
index 27039f8..b58fc72 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -2,14 +2,16 @@
 
 export(coastline)
 export(elevation)
-export(gebco)
-export(gebco21)
 export(imagery)
 export(raad_source)
 export(satbox)
 export(streetmap)
-importFrom(spatial.datasources,cop30)
-importFrom(spatial.datasources,cop90)
-importFrom(spatial.datasources,gebco)
-importFrom(spatial.datasources,gebco21)
+importFrom(grDevices,contourLines)
+importFrom(grDevices,dev.cur)
 importFrom(graphics,lines)
+importFrom(graphics,par)
+importFrom(sds,cop30)
+importFrom(sds,cop90)
+importFrom(sds,wms_openstreetmap_tms)
+importFrom(stats,na.omit)
+importFrom(utils,head)
diff --git a/NEWS.md b/NEWS.md
index 450e734..da18f76 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,8 +1,7 @@
 # whatarelief dev
 
 
-
-* Now importing gebco and all source related functions from spatial.datasources. 
+* Now importing gebco and all source related functions from sds. 
 
 * New internal helper function to plot an image with the output of vapour:::gdal_raster_data. 
 
diff --git a/R/000_dsn.R b/R/000_dsn.R
index 0dbe8be..38d4cf4 100644
--- a/R/000_dsn.R
+++ b/R/000_dsn.R
@@ -1,32 +1,21 @@
 
 
-.imagery_sources <- c(wms_arcgis_mapserver_ESRI.WorldImagery_tms = spatial.datasources::wms_arcgis_mapserver_ESRI.WorldImagery_tms(), 
-                     wms_bluemarble_s3_tms = spatial.datasources::wms_bluemarble_s3_tms(), 
-                     wms_googlehybrid_tms = spatial.datasources::wms_googlehybrid_tms(), 
-                     wms_virtualearth = spatial.datasources::wms_virtualearth(), 
-                     wms_ESA_worldcover_2020_tms = spatial.datasources::wms_ESA_worldcover_2020_tms(), 
-                     wms_mapbox_satellite = spatial.datasources::wms_mapbox_satellite())
+.imagery_sources <- c(wms_arcgis_mapserver_ESRI.WorldImagery_tms = sds::wms_arcgis_mapserver_ESRI.WorldImagery_tms(), 
+                     wms_bluemarble_s3_tms = sds::wms_bluemarble_s3_tms(), 
+                     wms_googlehybrid_tms = sds::wms_googlehybrid_tms(), 
+                     wms_virtualearth = sds::wms_virtualearth(), 
+                     wms_ESA_worldcover_2020_tms = sds::wms_ESA_worldcover_2020_tms(), 
+                     wms_mapbox_satellite = sds::wms_mapbox_satellite())
 
 
 
 
-.elevation_sources <- c(wms_amazon_elevation = spatial.datasources::wms_amazon_elevation(), 
-                        wms_amazon_elevation = spatial.datasources::wms_amazon_elevation(), 
-                        gebco = spatial.datasources::gebco()) 
+.elevation_sources <- c(wms_amazon_elevation = sds::wms_amazon_elevation(), 
+                        wms_amazon_elevation = sds::wms_amazon_elevation(), 
+                        gebco = sds::gebco()) 
 
-.streemap_sources <- c(wms_openstreetmap_tms = spatial.datasources::wms_openstreetmap_tms(), 
-                       wms_openstreetmap_tms=  spatial.datasources::wms_openstreetmap_tms(), 
-                      wms_virtualearth_street =  spatial.datasources::wms_virtualearth_street(), 
-                       wms_arcgis_mapserver_tms = spatial.datasources::wms_arcgis_mapserver_tms())
+.streemap_sources <- c(wms_openstreetmap_tms = sds::wms_openstreetmap_tms(), 
+                       wms_openstreetmap_tms=  sds::wms_openstreetmap_tms(), 
+                      wms_virtualearth_street =  sds::wms_virtualearth_street(), 
+                       wms_arcgis_mapserver_tms = sds::wms_arcgis_mapserver_tms())
 
-
-
-#' @importFrom spatial.datasources gebco
-#' @export
-#' @name gebco
-"gebco"
-
-#' @importFrom spatial.datasources gebco21
-#' @export
-#' @name gebco21
-"gebco21"
diff --git a/R/coastline.R b/R/coastline.R
index 3eac821..836a09d 100644
--- a/R/coastline.R
+++ b/R/coastline.R
@@ -15,7 +15,9 @@
 #'
 #' @return matrix of coordinates in longlat (or whatever projection is specified)
 #' @export
-#'
+#' @importFrom grDevices contourLines dev.cur
+#' @importFrom graphics par
+#' @importFrom utils head
 #' @examples
 #' plot(coastline(extent = c(-180, 180, -90, 90)), type = "l")
 #' 
diff --git a/R/elevation.R b/R/elevation.R
index ec9be1a..9ec21a9 100644
--- a/R/elevation.R
+++ b/R/elevation.R
@@ -77,7 +77,7 @@ format_out <- function(x) {
 #'
 #' @return a matrix, or depending on format of 'extent' a terra rast or raster object with elevation data
 #' @export
-#' @importFrom spatial.datasources cop30 cop90
+#' @importFrom sds cop30 cop90
 #' @examples
 #'
 #' image(elevation(), useRaster = TRUE)
@@ -87,8 +87,9 @@ format_out <- function(x) {
 #'
 #' elevation(raster::raster(raster::extent(80, 120, -60, -40), res = 0.25, crs = "OGC:CRS84"))
 #' \donttest{
-#' elevation(raster::raster(raster::extent(c(-1, 1, -1, 1) * 15e3), nrows = 1024, ncols = 1024,
+#' elevation(terra::rast(terra::ext(c(-1, 1, -1, 1) * 15e3), nrows = 256, ncols = 256,
 #'    crs = "+proj=laea +lat_0=44.6371 +lon_0=-63.5923"))
+#'    
 #' }
 elevation <- function(extent = c(-180, 180, -90, 90), ..., dimension = NULL, projection = NULL, resample = "bilinear", source = NULL, threshold = 0.5) {
 
@@ -115,8 +116,8 @@ elevation <- function(extent = c(-180, 180, -90, 90), ..., dimension = NULL, pro
   }
 
   if (is.null(source)) {
-    rso <- c(gebco(),
-             spatial.datasources::cop90(), spatial.datasources::cop30())
+    rso <- c(sds::gebco(),
+             sds::cop90(), sds::cop30())
     if (no_srtm30) rso <- rso[1:2] else rso <- rso[c(1, 3)]
     if (no_srtm) rso <- rso[1L]
     if (!no_srtm) print("SRTM in use, in addition to GEBCO")
diff --git a/R/imagery.R b/R/imagery.R
index f072107..a545e11 100644
--- a/R/imagery.R
+++ b/R/imagery.R
@@ -35,7 +35,7 @@
 #' plt(imagery())
 #' plt(imagery(c(100, 150, -60, -20), projection = "OGC:CRS84"))
 #' ## can't do yet
-#' #plt(imagery(terra::rast())
+#' #plt(imagery(terra::rast()))
 #' #imagery(raster::raster())
 #'
 imagery <- function(extent = c(-180, 180, -90, 90), ..., dimension = NULL, projection = "OGC:CRS84", resample = "near", source = NULL) {
@@ -69,7 +69,7 @@ imagery <- function(extent = c(-180, 180, -90, 90), ..., dimension = NULL, proje
 
 }
 
-
+#' @importFrom sds wms_openstreetmap_tms
 #' @export
 #' @name imagery
 streetmap <- function(extent = c(-180, 180, -90, 90), ..., dimension = NULL, projection = "OGC:CRS84", resample = "cubic", source = NULL) {
@@ -78,7 +78,7 @@ streetmap <- function(extent = c(-180, 180, -90, 90), ..., dimension = NULL, pro
   x <- format_out(list(extent = extent, dimension = dimension, projection = projection))
 
   if (is.null(source)) {
-    rso <- .streetmap_sources["wms_openstreetmap_tms"]
+    rso <- sds::wms_openstreetmap_tms()
   } else {
     rso <- source
   }
diff --git a/R/imfun.R b/R/imfun.R
index a4d3bed..56b01d4 100644
--- a/R/imfun.R
+++ b/R/imfun.R
@@ -1,4 +1,5 @@
 
+#' @importFrom stats na.omit
 #' @importFrom graphics lines
 imfun <- function(X, coastline = TRUE) {
   if (!requireNamespace("ximage")) stop("{ximage} package required for imfun()")
diff --git a/man/elevation.Rd b/man/elevation.Rd
index a7fb429..4568100 100644
--- a/man/elevation.Rd
+++ b/man/elevation.Rd
@@ -55,7 +55,8 @@ elevation(raster::raster())
 
 elevation(raster::raster(raster::extent(80, 120, -60, -40), res = 0.25, crs = "OGC:CRS84"))
 \donttest{
-elevation(raster::raster(raster::extent(c(-1, 1, -1, 1) * 15e3), nrows = 1024, ncols = 1024,
+elevation(terra::rast(terra::ext(c(-1, 1, -1, 1) * 15e3), nrows = 256, ncols = 256,
    crs = "+proj=laea +lat_0=44.6371 +lon_0=-63.5923"))
+   
 }
 }
diff --git a/man/imagery.Rd b/man/imagery.Rd
index 4853982..6cdef57 100644
--- a/man/imagery.Rd
+++ b/man/imagery.Rd
@@ -75,7 +75,7 @@ plot(NA, xlim = c(0, nc), ylim = c(0, nr), asp = 1);
 plt(imagery())
 plt(imagery(c(100, 150, -60, -20), projection = "OGC:CRS84"))
 ## can't do yet
-#plt(imagery(terra::rast())
+#plt(imagery(terra::rast()))
 #imagery(raster::raster())
 
 }